Purple
Encyclopedia
Purple is a range of hues of color
Color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, green, blue and others. Color derives from the spectrum of light interacting in the eye with the spectral sensitivities of the light receptors...

 occurring between red
Red
Red is any of a number of similar colors evoked by light consisting predominantly of the longest wavelengths of light discernible by the human eye, in the wavelength range of roughly 630–740 nm. Longer wavelengths than this are called infrared , and cannot be seen by the naked eye...

 and blue
Blue
Blue is a colour, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440–490 nm. It is considered one of the additive primary colours. On the HSV Colour Wheel, the complement of blue is yellow; that is, a colour corresponding to an equal...

, and is classified as a secondary color as the colors (blue and red) are required to create the shade.

In color theory
Color theory
In the visual arts, color theory is a body of practical guidance to color mixing and the visual impacts of specific color combinations. Although color theory principles first appeared in the writings of Leone Battista Alberti and the notebooks of Leonardo da Vinci , a tradition of "colory theory"...

, "purple" is defined as any non-spectral color between violet
Violet (color)
As the name of a color, violet is synonymous with a bluish purple, when the word "purple" is used in the common English language sense of any color between blue and red, not including either blue or red...

 and red (excluding violet and red themselves).

In art
Art
Art is the product or process of deliberately arranging items in a way that influences and affects one or more of the senses, emotions, and intellect....

, purple is acknowledged as the color on the color wheel between magenta and violet and its tint
Tint
In color theory, a tint is the mixture of a color with white.Tint may also refer to:* Tint control, an adjustment to correct for phase error in the picture color on a NTSC television set* Tint , an album by Merzbow...

s and shade
Shade
Shade is the blocking of sunlight by any object, and also the shadow created by that object. Shade also consists of the colors grey, black, white, etc...

s.

Etymology and definitions

The word 'purple' comes from the Old English word purpul which derives from the Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 purpura, in turn from the Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

  (porphura), name of the Tyrian purple
Tyrian purple
Tyrian purple , also known as royal purple, imperial purple or imperial dye, is a purple-red natural dye, which is extracted from sea snails, and which was possibly first produced by the ancient Phoenicians...

 dye
Dye
A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....

 manufactured in classical antiquity from a mucus secreted by the spiny dye-murex snail.

The first recorded use of the word 'purple' in English was in the year A.D. 975.

Properties

The Munsell color system
Munsell color system
In colorimetry, the Munsell color system is a color space that specifies colors based on three color dimensions: hue, value , and chroma . It was created by Professor Albert H...

 is a color space
Color space
A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components...

 that specifies colors based on three color dimensions: hue
Hue
Hue is one of the main properties of a color, defined technically , as "the degree to which a stimulus can be describedas similar to or different from stimuli that are described as red, green, blue, and yellow,"...

, value (lightness
Lightness (color)
Lightness is a property of a color, or a dimension of a color space, that is defined in a way to reflect the subjective brightness perception of a color for humans along a lightness–darkness axis. A color's lightness also corresponds to its amplitude.Various color models have an explicit term for...

), and chroma (color purity), spaced uniformly in three dimensions in the elongated oval at an angle shaped Munsell color solid
Color solid
A color solid is the three-dimensional representation of a color model, an analog of the two-dimensional color wheel. The added spatial dimension allows a color solid to depict an added dimension of color variation...

 according to the logarithmic scale
Logarithmic scale
A logarithmic scale is a scale of measurement using the logarithm of a physical quantity instead of the quantity itself.A simple example is a chart whose vertical axis increments are labeled 1, 10, 100, 1000, instead of 1, 2, 3, 4...

 which governs human perception. In order for all the colors to be spaced uniformly, it was found necessary to use a color wheel with five primary colors—red, yellow, green, blue, and purple. The Munsell colors displayed are only approximate as they have been adjusted to fit into the sRGB gamut.

On a chromaticity diagram, the straight line connecting the extreme spectral colors (red and violet) is known as the line of purples
Line of purples
In color theory, the line of purples or the purple boundary is the locus of non-spectral colors on the edge of the chromaticity diagram between red and violet. Like spectral colors, purples can be considered fully saturated in the sense that for any given point on the line of purples there exists...

 (or 'purple boundary'); it represents one limit of human color perception
Color vision
Color vision is the capacity of an organism or machine to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit...

. The color magenta used in the CMYK printing process is near the center of the line of purples, but most people associate the term "purple" with a somewhat bluer tone, such as is displayed by the color "electric purple" (a color also directly on the line of purples), shown below. Some common confusion exists concerning the color name
Color name
A color term, also known as a color name, is a word or phrase that refers to a specific color. The color term may refer to human perception of that color , or to an underlying physical property...

s "purple" and "violet". Purple is a mixture of red and blue light, whereas violet is a spectral color
Spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths...

.

On the CIE xy chromaticity diagram
CIE 1931 color space
In the study of color perception, one of the first mathematically defined color spaces is the CIE 1931 XYZ color space, created by the International Commission on Illumination in 1931....

, purple shades located on the straight line connecting the extreme colors red and violet; this line is known as the line of purples
Line of purples
In color theory, the line of purples or the purple boundary is the locus of non-spectral colors on the edge of the chromaticity diagram between red and violet. Like spectral colors, purples can be considered fully saturated in the sense that for any given point on the line of purples there exists...

, or the purple line.

Shades of purple

  • Computer web color purples


Purple (HTML/CSS color) (patriarch) is used in HTML
HTML
HyperText Markup Language is the predominant markup language for web pages. HTML elements are the basic building-blocks of webpages....

 and CSS
Cascading Style Sheets
Cascading Style Sheets is a style sheet language used to describe the presentation semantics of a document written in a markup language...

 actually is deeper and has a more reddish hue (#800080) than the X11 color
X11 color names
In computing, on the X Window System, X11 color names are represented in a simple text file, which maps certain strings to RGB color values. It is shipped with every X11 installation, hence the name, and is usually located in <X11root>/lib/X11/rgb.txt.It is not known who originally compiled...

 purple known as purple (X11) (#A020F0), which is bluer and brighter. A traditional name sometimes used for this tone of purple is patriarch. The first recorded use of patriarch as a color name in English was in 1925.

  • Electric purple


This shade is precisely halfway between violet and magenta, being the artistic definition of purple. This shade has also been referred to by Robert Ridgway in his 1912 book Color Standards and Color Nomenclature as true purple.
  • Fluorescent purple (phlox)


The pure essence of purple was approximated in pigment in the late 1960s by mixing fluorescent magenta and fluorescent blue pigments together to make fluorescent purple to use in psychedelic
Psychedelic
The term psychedelic is derived from the Greek words ψυχή and δηλοῦν , translating to "soul-manifesting". A psychedelic experience is characterized by the striking perception of aspects of one's mind previously unknown, or by the creative exuberance of the mind liberated from its ostensibly...

 black light
Black light
A black light, also referred to as a UV light, ultraviolet light, or Wood's lamp, is a lamp that emits ultraviolet radiation in the long-wave range, and little visible light...

 paintings. The shade is also referred to as phlox, as it is the color of the phlox
Phlox
Phlox is a genus of 67 species of perennial and annual plants found mostly in North America in diverse habitats from alpine tundra to open woodland and prairie. Some flower in spring, others in summer and autumn....

 flower. The first recorded use of phlox as a color name in English was in 1918.
  • Han purple


  • Heliotrope


The color heliotrope is a brilliant tone of purple; it is a pink
Pink
Pink is a mixture of red and white. Commonly used for Valentine's Day and Easter, pink is sometimes referred to as "the color of love." The use of the word for the color known today as pink was first recorded in the late 17th century....

-purple tint that is a representation of the color of the heliotrope flower
Heliotropium
Heliotropium is a genus of flowering plants in the borage family, Boraginaceae. There are 250 to 300 species in this genus, which are commonly known as heliotropes ....

. The first recorded use of heliotrope as a color name in English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 was in 1882.
  • Orchid


  • Purple (X11 color) (veronica)


The traditional name for this tone of purple is veronica. The first recorded use of veronica as a color name in English was in 1919.
  • Royal Purple


The first recorded use of royal purple as a color name in English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 was in 1661.
  • Thistle

Thistle is a pale purplish color resembling the thistle
Thistle
Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles often occur all over the plant – on surfaces such as those of the stem and flat parts of leaves. These are an adaptation that protects the...

 plant. The first recorded use of Thistle as a color name in English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 was in 1892. The color thistle is associated with Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 as the thistle
Thistle
Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles often occur all over the plant – on surfaces such as those of the stem and flat parts of leaves. These are an adaptation that protects the...

 is the national flower of Scotland (Scotland's highest state decoration
State decoration
State decorations are orders, medals and other decorations granted by a state. International decorations are similar, but are not granted by a specific nation but rather an international organization....

 is also the Order of the Thistle
Order of the Thistle
The Most Ancient and Most Noble Order of the Thistle is an order of chivalry associated with Scotland. The current version of the Order was founded in 1687 by King James VII of Scotland who asserted that he was reviving an earlier Order...

).
  • Tyrian purple


  • Violet


The shade violet is a spectral color
Spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths...

 (approximately 380–420 nm), of a shorter wavelength than blue, while purple is a combination of red and blue or violet light. The purples are colors that are not spectral colors – purples are extra-spectral colors. In fact, purple was not present on Newton's color wheel
Color wheel
A color wheel or color circle is an abstract illustrative organization of color hues around a circle that shows relationships between primary colors, secondary colors, complementary colors, etc....

 (which went directly from violet to red), though it is on modern ones, between red and violet. There is no such thing as the "wavelength of purple light"; it only exists as a combination. Pure violet cannot be reproduced by a Red-Green-Blue (RGB) color system, but it can be approximated by mixing blue and red. The resulting color has the same hue
Hue
Hue is one of the main properties of a color, defined technically , as "the degree to which a stimulus can be describedas similar to or different from stimuli that are described as red, green, blue, and yellow,"...

 but a lower saturation than pure violet. One psychophysical
Psychophysics
Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they effect. Psychophysics has been described as "the scientific study of the relation between stimulus and sensation" or, more completely, as "the analysis of perceptual...

 feature of the two colors that can be used to separate them is their appearance with increase of light intensity
Light intensity
Several measures of light are commonly known as intensity. These are obtained by dividing either a power or a luminous flux by a solid angle, a planar area, or a combination of the two...

. Violet, as light intensity increases, appears to take on a far more blue hue as a result of what is known as the Bezold-Brücke shift
Bezold-Brücke shift
The Bezold–Brücke shift is a change in hue perception as intensity changes. As intensity increases, spectral colors shift more towards blue or yellow . At lower intensities, the red/green axis dominates....

.

Bacteria

  • Purple bacteria
    Purple bacteria
    Purple bacteria or purple photosynthetic bacteria are proteobacteria that are phototrophic, that is capable of producing energy through photosynthesis...

     are proteobacteria
    Proteobacteria
    The Proteobacteria are a major group of bacteria. They include a wide variety of pathogens, such as Escherichia, Salmonella, Vibrio, Helicobacter, and many other notable genera....

     that are phototroph
    Phototroph
    Phototrophs are the organisms that carry out photosynthesis to acquire energy. They use the energy from sunlight to convert carbon dioxide and water into organic material to be utilized in cellular functions such as biosynthesis and respiration.Most phototrophs are autotrophs, also known as...

    ic, that is, capable of producing energy through photosynthesis
    Photosynthesis
    Photosynthesis is a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Photosynthesis occurs in plants, algae, and many species of bacteria, but not in archaea. Photosynthetic organisms are called photoautotrophs, since they can...

    .

Plants

  • Purple needlegrass
    Stipa
    This article is about a type of grass.For Speech Transmission Index for Public Address Systems, see Speech transmission index.For the Italian aircraft designer, see Luigi Stipa...

     is the state grass of California.

  • Eggplant, also called "aubergine", is a plant of the family Solanaceae and genus Solanum Eggplant, aubergine which has a dark purple colored
    Eggplant (color)
    Eggplant is a dark purple or brownish-purple color that resembles the color of the outer skin of European eggplants. Another name for the color eggplant is aubergine ....

     fruit which is widely eaten, especially in Italian cuisine
    Italian cuisine
    Italian cuisine has developed through centuries of social and political changes, with roots as far back as the 4th century BCE. Italian cuisine in itself takes heavy influences, including Etruscan, ancient Greek, ancient Roman, Byzantine, Jewish and Arab cuisines...

    .


The pansy
Pansy
The Pansy is a large group of hybrid plants cultivated as garden flowers. Pansies are derived from Viola species Viola tricolor hybridized with other viola species, these hybrids are referred to as Viola × wittrockiana or less commonly Viola tricolor hortensis...

 flower has varieties that exhibit three different colors: pansy (a color between indigo and violet), pansy pink, and pansy purple. The first recorded use of pansy purple as a color name in English was in 1814.

Animals

  • The purple frog
    Purple Frog
    Nasikabatrachus sahyadrensis is a frog species belonging to the family Sooglossidae. It can be found in the Western Ghats in India. Common names for this species are Purple Frog, Indian Purple Frog, Pignose Frog or Doughnut Frog. It was discovered by S.D. Biju and F...

     is a species of amphibian
    Amphibian
    Amphibians , are a class of vertebrate animals including animals such as toads, frogs, caecilians, and salamanders. They are characterized as non-amniote ectothermic tetrapods...

     discovered in India in 2003.
  • Purple Honeycreeper
    Purple Honeycreeper
    The Purple Honeycreeper, Cyanerpes caeruleus, is a small bird in the tanager family. It is found in the tropical New World from Colombia and Venezuela south to Brazil, and on Trinidad. A few, possibly introduced birds have been recorded on Tobago...


Academic dress

  • In the French academic dress system
    Academic dress
    Academic dress or academical dress is a traditional form of clothing for academic settings, primarily tertiary education, worn mainly by those that have been admitted to a university degree or hold a status that entitles them to assume them...

    , the five traditional fields of study (Arts, Science, Medicine, Law and Divinity) are each symbolized by a distinctive color, which appears in the academic dress
    Academic dress
    Academic dress or academical dress is a traditional form of clothing for academic settings, primarily tertiary education, worn mainly by those that have been admitted to a university degree or hold a status that entitles them to assume them...

     of the people who graduated in this field. Purple (usually a hue close to Royal Purple) is the distinctive color for Divinity. It is also worn by high academic officials (University President, Head of Faculty, Rector, etc.) regardless of the field in which they graduated.

Anti-apartheid movement

  • The Purple Rain Protest
    Purple Rain Protest
    The Purple Rain Protest, Purple Rain Revolt or Purple Rain Riot was an anti-apartheid protest held in Cape Town on September 2, 1989, four days before South Africa's racially segregated parliament held its elections...

     was a protest against apartheid that took place in Cape Town
    Cape Town
    Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

    , South Africa on September 2, 1989, in which a police water cannon
    Water cannon
    A water cannon is a device that shoots a high-pressure stream of water. Typically, a water cannon can deliver a large volume of water, often over dozens of metres / hundreds of feet. They are used in firefighting and riot control. Most water cannon fall under the category of a fire...

     with purple dye sprayed thousands of demonstrators. This led to the slogan The purple shall govern.

Astronomy

  • One of the star
    Star
    A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

    s in the Pleiades
    Pleiades (star cluster)
    In astronomy, the Pleiades, or Seven Sisters , is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky...

    , called Pleione
    Pleione (star)
    Pleione is a binary star in the Pleiades star cluster , located roughly 390 light years away in the constellation of Taurus. Pleione was not given a Bayer designation, but did receive a Flamsteed number—hence its designation 28 Tauri...

    , is sometimes called Purple Pleione because, being a fast spinning star, it has a purple hue caused by its blue-white color being obscured by a spinning ring of electrically excited red hydrogen gas.

Billiard games

  • Purple is the color of the ball in Snooker Plus
    Snooker Plus
    Snooker plus is a cue sport based on snooker. The variant was created by Joe Davis, who added an orange ball and a purple ball to the set. The idea was that this would increase the maximum break from 147 to 210, and so help to attract a greater audience...

     with a 10-point value.
  • In the game of pool
    Pocket billiards
    Pool, also more formally known as pocket billiards or pool billiards , is the family of cue sports and games played on a pool table having six receptacles called pockets along the , into which balls are deposited as the main goal of play. Popular versions include eight-ball and nine-ball...

    , purple is the color of the 4-solid and the 12-striped balls.

Calendars

  • Purple is associated with Saturday on the Thai solar calendar
    Thai solar calendar
    The Thai solar calendar, Suriyakati was adopted by King Chulalongkorn in AD 1888 as the Siamese version of the Gregorian calendar. It is the legal calendar in Thailand, though Thai lunar calendar dates continue in use. Years are now counted in the Buddhist Era that is 543 years greater than...

    . Anyone may wear purple on Saturdays and anyone born on a Saturday may adopt purple as their color.

Cultural associations

  • In parts of East Asian countries such as Japan
    Japan
    Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

    , purple is known as the color of death
    Death
    Death is the permanent termination of the biological functions that sustain a living organism. Phenomena which commonly bring about death include old age, predation, malnutrition, disease, and accidents or trauma resulting in terminal injury....

    .

Geography

  • Purple Mountain is located on the eastern side of Nanjing
    Nanjing
    ' is the capital of Jiangsu province in China and has a prominent place in Chinese history and culture, having been the capital of China on several occasions...

    , Jiangsu Province
    Jiangsu
    ' is a province of the People's Republic of China, located along the east coast of the country. The name comes from jiang, short for the city of Jiangning , and su, for the city of Suzhou. The abbreviation for this province is "苏" , the second character of its name...

    , People’s Republic of China. Its peaks are often found enveloped in mysterious purple clouds at dawn and dusk, hence comes its name "Purple Mountain". The Purple Mountain Observatory
    Purple Mountain Observatory
    Purple Mountain Observatory , also known as Zijinshan Astronomical Observatory, is an astronomical observatory located on the Purple Mountain in Nanjing, China.The long time director of the observatory was Zhang Yuzhe Purple Mountain Observatory , also known as Zijinshan Astronomical Observatory,...

     is located there.

Heraldry

  • Porpora, or purpure
    Purpure
    In heraldry, purpure is a tincture, more or less the equivalent of the colour "purple", and is one of the five main or most usually used colours...

    , was not one of the usual tincture
    Tincture (heraldry)
    In heraldry, tinctures are the colours used to emblazon a coat of arms. These can be divided into several categories including light tinctures called metals, dark tinctures called colours, nonstandard colours called stains, furs, and "proper". A charge tinctured proper is coloured as it would be...

    s in European heraldry
    Heraldry
    Heraldry is the profession, study, or art of creating, granting, and blazoning arms and ruling on questions of rank or protocol, as exercised by an officer of arms. Heraldry comes from Anglo-Norman herald, from the Germanic compound harja-waldaz, "army commander"...

    , being added at a late date to bring the number of colors plus metals to seven, so that they could be given planetary associations. The classic early example of purpure is in the coat of arms
    Coat of arms
    A coat of arms is a unique heraldic design on a shield or escutcheon or on a surcoat or tabard used to cover and protect armour and to identify the wearer. Thus the term is often stated as "coat-armour", because it was anciently displayed on the front of a coat of cloth...

     of the Kingdom of León
    Kingdom of León
    The Kingdom of León was an independent kingdom situated in the northwest region of the Iberian Peninsula. It was founded in AD 910 when the Christian princes of Asturias along the northern coast of the peninsula shifted their capital from Oviedo to the city of León...

    : argent, a lion purpure, as early as 1245.

History

  • Byzantine
    Byzantine
    Byzantine usually refers to the Roman Empire during the Middle Ages.Byzantine may also refer to:* A citizen of the Byzantine Empire, or native Greek during the Middle Ages...

     empresses gave birth in the Purple Chamber of the palace of the Byzantine Emperors. Therefore, being named Porphyrogenitus ("born to the purple") marked a dynastic emperor as opposed to a general who won the throne by his effort.
  • In China, the Chinese name of the Forbidden City
    Forbidden City
    The Forbidden City was the Chinese imperial palace from the Ming Dynasty to the end of the Qing Dynasty. It is located in the middle of Beijing, China, and now houses the Palace Museum...

     literally means "purple forbidden city".

Holocaust

  • The purple triangle
    Purple triangle
    The purple triangle was a concentration camp badge used by the Nazis to identify Bibelforscher , the German name for Jehovah’s Witnesses in Nazi Germany. A small number of Adventists, Baptists and pacifists were also identified by the badge...

     was a Nazi concentration camp badge
    Nazi concentration camp badges
    Nazi concentration camp badges, primarily triangles, were part of the system of identification in Nazi camps. They were used in the concentration camps in the Nazi-occupied countries to identify the reason the prisoners had been placed there. The triangles were made of fabric and were sewn on...

     used by the Nazis to identify several un-orthodox non-conformist religious groups known as Bibelforscher, mostly Jehovah’s Witnesses.

Literature

  • Alice Walker
    Alice Walker
    Alice Malsenior Walker is an American author, poet, and activist. She has written both fiction and essays about race and gender...

    , author of The Color Purple
    The Color Purple
    The Color Purple is an acclaimed 1982 epistolary novel by American author Alice Walker. It received the 1983 Pulitzer Prize for Fiction and the National Book Award for Fiction...

    ,
    said, "Womanist
    Womanist
    Womanist theology is a religious conceptual framework which reconsiders and revises the traditions, practices, scriptures, and biblical interpretation with a special lens to empower and liberate African American women in America...

     is to feminist as purple is to lavender
    Lavender (color)
    Lavender is a pale tint of violet. It applies particularly to the color of the flower of the same name. The web color called lavender is displayed at right—it matches the color of the very palest part of the lavender flower; however, the more saturated color shown below as floral lavender more...

    ."
  • As a result of its association with royalty and luxury, the term purple is often used to describe pretentious or overly embellished literature. For example, a paragraph containing an excessive number of long and unusual words is called a purple passage (see Purple prose
    Purple prose
    Purple prose is a term of literary criticism used to describe passages, or sometimes entire literary works, written in prose so extravagant, ornate, or flowery as to break the flow and draw attention to itself. Purple prose is sensually evocative beyond the requirements of its context...

    ).

Microbiology

  • In April 2007 it was suggested that early archaea
    Archaea
    The Archaea are a group of single-celled microorganisms. A single individual or species from this domain is called an archaeon...

     may have used retinal
    Retinal
    Retinal, also called retinaldehyde or vitamin A aldehyde, is one of the many forms of vitamin A . Retinal is a polyene chromophore, and bound to proteins called opsins, is the chemical basis of animal vision...

    , a purple pigment, instead of chlorophyll
    Chlorophyll
    Chlorophyll is a green pigment found in almost all plants, algae, and cyanobacteria. Its name is derived from the Greek words χλωρος, chloros and φύλλον, phyllon . Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to obtain energy from light...

    , to extract energy from the sun. If so, large areas of the ocean and shoreline would have been colored purple; this is called the Purple Earth hypothesis
    Purple Earth Hypothesis
    Purple Earth hypothesis is an astrobiological hypothesis that life forms of early Earth were retinal-based rather than chlorophyll-based thus making Earth appear purple rather than green...

    .

Military

  • In the US and United Kingdom militaries
    Military
    A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

    , purple refers to programs or assignments that are "joint", i. e., that are not confined to a single service such as the army or navy, but apply to the entire defense establishment. In the Canadian Forces
    Canadian Forces
    The Canadian Forces , officially the Canadian Armed Forces , are the unified armed forces of Canada, as constituted by the National Defence Act, which states: "The Canadian Forces are the armed forces of Her Majesty raised by Canada and consist of one Service called the Canadian Armed Forces."...

     they are known as purple trades
    Purple trades
    In the armed forces of Canada, the purple trades are occupations and careers – typically related to logistics or other support – that are not strongly linked to one of the Canadian Forces' three major 'environments' or 'elements': sea, land, or air....

    . Assignment to one or more joint billet
    Billet
    A billet is a term for living quarters to which a soldier is assigned to sleep. Historically, it referred to a private dwelling that was required to accept the soldier....

    s is required for promotion to flag rank (Rear Admiral
    Admiral
    Admiral is the rank, or part of the name of the ranks, of the highest naval officers. It is usually considered a full admiral and above vice admiral and below admiral of the fleet . It is usually abbreviated to "Adm" or "ADM"...

     and higher) in the U.S. Navy. Officers in joint billets are sometimes referred to as "wearing purple" (the phrase is purely metaphorical as there are no purple uniforms in the U.S. armed forces, UK armed forces
    British Armed Forces
    The British Armed Forces are the armed forces of the United Kingdom of Great Britain and Northern Ireland.Also known as Her Majesty's Armed Forces and sometimes legally the Armed Forces of the Crown, the British Armed Forces encompasses three professional uniformed services, the Royal Navy, the...

     or Canadian Forces
    Canadian Forces
    The Canadian Forces , officially the Canadian Armed Forces , are the unified armed forces of Canada, as constituted by the National Defence Act, which states: "The Canadian Forces are the armed forces of Her Majesty raised by Canada and consist of one Service called the Canadian Armed Forces."...

    .)
  • During and before World War II, the Japanese
    Empire of Japan
    The Empire of Japan is the name of the state of Japan that existed from the Meiji Restoration on 3 January 1868 to the enactment of the post-World War II Constitution of...

     used a code known as PURPLE or the Purple Code. The Allies' military successes in the Pacific theater depended on the fact that the Japanese did not know that Allied cryptographers had broken the code.
  • The Purple Heart
    Purple Heart
    The Purple Heart is a United States military decoration awarded in the name of the President to those who have been wounded or killed while serving on or after April 5, 1917 with the U.S. military. The National Purple Heart Hall of Honor is located in New Windsor, New York...

     is a US military decoration
    Awards and decorations of the United States military
    Awards and decorations of the United States Military are military decorations which recognize service and personal accomplishments while a member of the United States armed forces...

     awarded in the name of the President of the USA to those who have been wounded or killed while serving on or after April 5, 1917 with the U.S. military.

Mourning

  • In 16th century England, purple was the color for the final stage of mourning, according to Mark Twain
    Mark Twain
    Samuel Langhorne Clemens , better known by his pen name Mark Twain, was an American author and humorist...

     in his first attempt at historical fiction
    Historical fiction
    Historical fiction tells a story that is set in the past. That setting is usually real and drawn from history, and often contains actual historical persons, but the principal characters tend to be fictional...

    , "The Prince and the Pauper
    The Prince and the Pauper
    The Prince and the Pauper is an English-language novel by American author Mark Twain. It was first published in 1881 in Canada before its 1882 publication in the United States. The book represents Twain's first attempt at historical fiction...

    ".

  • More recently especially during Victorian times and even to some extent today, for the first year following a death ('deep mourning') black is worn by close relatives and this is gradually replaced by other dark colors (during 'half mourning'or 'Secondary Mourning'), often by purple or dark green trimmed with black Oxford University Museum – Funeral Clothing

Music

  • Deep Purple
    Deep Purple
    Deep Purple are an English rock band formed in Hertford in 1968. Along with Led Zeppelin and Black Sabbath, they are considered to be among the pioneers of heavy metal and modern hard rock, although some band members believe that their music cannot be categorised as belonging to any one genre...

     is a popular rock
    Rock and roll
    Rock and roll is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s, primarily from a combination of African American blues, country, jazz, and gospel music...

     band.
  • "Deep Purple" (song)
    Deep Purple (song)
    "Deep Purple" was the biggest hit written by pianist Peter DeRose, who broadcast, 1923 to 1939, with May Singhi as "The Sweethearts of the Air" on the NBC radio network. "Deep Purple" was published in 1933 as a piano composition. The following year, Paul Whiteman had it scored for his suave "big...

     is also the name of a popular song. that was the favorite of Babe Ruth
    Babe Ruth
    George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...

    .
  • "Purple People Eater
    Purple People Eater
    "Purple People Eater" is a novelty song, written and performed by Sheb Wooley, that reached #1 in the Billboard pop charts in 1958.-Composition:...

    " was one of the biggest rock and roll
    Rock and roll
    Rock and roll is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s, primarily from a combination of African American blues, country, jazz, and gospel music...

     hits of 1958.
  • "Purple Haze
    Purple Haze
    "Purple Haze" is a song written in 1966 and recorded in 1967 by The Jimi Hendrix Experience and released as a single in both the United Kingdom and the United States. It appeared on their 1967 album Are You Experienced...

    " is a song by Jimi Hendrix
    Jimi Hendrix
    James Marshall "Jimi" Hendrix was an American guitarist and singer-songwriter...

    .
  • Purple Rain
    Purple Rain (song)
    "Purple Rain" is a power ballad by Prince and The Revolution. It is the title track from the 1984 album of the same name, which in turn is the soundtrack album for the 1984 film of the same name, and was released as the third single from that album. The song is a combination of rock, pop, gospel,...

     is Prince
    Prince (musician)
    Prince Rogers Nelson , often known simply as Prince, is an American singer, songwriter, musician, and actor. Prince has produced ten platinum albums and thirty Top 40 singles during his career. Prince founded his own recording studio and label; writing, self-producing and playing most, or all, of...

    's iconic signature song
    Signature song
    A signature song is the one song that a popular and well-established singer or band is most closely identified with or best known for, even if they have had success with a variety of songs...

    , featured in his Purple Rain
    Purple Rain (album)
    Purple Rain is the sixth studio album by Prince, the first to officially be credited to Prince and The Revolution, and is the soundtrack album to the 1984 film Purple Rain.Purple Rain is regularly ranked among the best albums in pop music history...

     album, which was the soundtrack
    Soundtrack
    A soundtrack can be recorded music accompanying and synchronized to the images of a motion picture, book, television program or video game; a commercially released soundtrack album of music as featured in the soundtrack of a film or TV show; or the physical area of a film that contains the...

     for the Purple Rain
    Purple Rain (film)
    Purple Rain is a 1984 film directed by Albert Magnoli and written by Magnoli and William Blinn. Prince makes his film debut in this movie, which was developed to showcase his particular talents, hence, the film contains several extended concert sequences. The film grossed more than US$80 million at...

     film, starred by him.

Parapsychology

  • People with purple auras
    Aura (paranormal)
    In parapsychology and many forms of spiritual practice, an aura is a field of subtle, luminous radiation surrounding a person or object . The depiction of such an aura often connotes a person of particular power or holiness. Sometimes, however, it is said that all living things and all objects...

     are said to have a love of ritual and ceremony.

People

  • Barbara Meislin
    Barbara Meislin
    Barbara Meislin is an American author, singer, philanthropist, and healer, known locally in the town of Tiburon, California for a devotion to things colored purple.-Biography:...

     of Tiburon, California
    Tiburon, California
    Tiburon is an incorporated town in Marin County, California. It occupies most of the Tiburon Peninsula, which reaches south into the San Francisco Bay. The smaller city of Belvedere occupies the south-east part of the peninsula and is contiguous with Tiburon...

     is referred to as The Purple Lady.
  • Singer Prince
    Prince (musician)
    Prince Rogers Nelson , often known simply as Prince, is an American singer, songwriter, musician, and actor. Prince has produced ten platinum albums and thirty Top 40 singles during his career. Prince founded his own recording studio and label; writing, self-producing and playing most, or all, of...

     appeared in a feature film
    Feature film
    In the film industry, a feature film is a film production made for initial distribution in theaters and being the main attraction of the screening, rather than a short film screened before it; a full length movie...

     called Purple Rain
    Purple Rain (film)
    Purple Rain is a 1984 film directed by Albert Magnoli and written by Magnoli and William Blinn. Prince makes his film debut in this movie, which was developed to showcase his particular talents, hence, the film contains several extended concert sequences. The film grossed more than US$80 million at...

     and released a single entitled Purple Rain
    Purple Rain (song)
    "Purple Rain" is a power ballad by Prince and The Revolution. It is the title track from the 1984 album of the same name, which in turn is the soundtrack album for the 1984 film of the same name, and was released as the third single from that album. The song is a combination of rock, pop, gospel,...

     from the eponymous album.

Politics

  • In Italy, since the global demonstration of 5th December 2009
    No Berlusconi day
    No Berlusconi Day was a spontaneous mass political event organised by the Purple people and held worldwide on December 5th 2009. The protest was organized almost entirely trough the Internet...

    , purple has been used by a large civic movement protesting against Berlusconi's government, accused to be a media-dictatorship heavily connected with the Mafia. This color was chosen as a non-partisan emblem because it isn't associated with any current Italian party symbol. The movement, operating mainly through the web, thus defines itself Popolo Viola (Purple People
    Purple people
    The Purple People are an Italian mass protest movement who are calling for the resignation of Prime Minister Silvio Berlusconi...

    ).
  • In British politics, purple is used to represent the United Kingdom Independence Party
    United Kingdom Independence Party
    The United Kingdom Independence Party is a eurosceptic and right-wing populist political party in the United Kingdom. Whilst its primary goal is the UK's withdrawal from the European Union, the party has expanded beyond its single-issue image to develop a more comprehensive party platform.UKIP...

    , a right-wing Eurosceptic
    Euroscepticism
    Euroscepticism is a general term used to describe criticism of the European Union , and opposition to the process of European integration, existing throughout the political spectrum. Traditionally, the main source of euroscepticism has been the notion that integration weakens the nation state...

     party.
  • In the politics of the Netherlands
    Politics of the Netherlands
    The politics of the Netherlands take place within the framework of a parliamentary representative democracy, a constitutional monarchy and a decentralised unitary state. The Netherlands is described as a consociational state...

    , Purple
    Purple (government)
    Purple is a common term in politics for governments or other political entities consisting of parties that have red and blue as their political colours...

      means a coalition government consisting of liberal
    Liberalism
    Liberalism is the belief in the importance of liberty and equal rights. Liberals espouse a wide array of views depending on their understanding of these principles, but generally, liberals support ideas such as constitutionalism, liberal democracy, free and fair elections, human rights,...

    s and social democrat
    Social democracy
    Social democracy is a political ideology of the center-left on the political spectrum. Social democracy is officially a form of evolutionary reformist socialism. It supports class collaboration as the course to achieve socialism...

    s (symbolized by the colors blue and red, respectively), as opposed to the more common coalitions of the Christian Democrats
    Christian democracy in the Netherlands
    This article gives an overview of christian democracy in the Netherlands, which is also called confessional politics, including political Catholicism and Protestantism. It is limited to Christian democratic parties with substantial support, mainly proved by having had a representation in parliament...

     with one of the other two. Between 1994 and 2002 there were two Purple cabinets, both lead by Prime Minister
    Prime Minister of the Netherlands
    The Prime Minister of the Netherlands is the chairman of the Council of Ministers of the Netherlands. He is the de facto head of government of the Netherlands and coordinates the policy of the government...

     Wim Kok
    Wim Kok
    Willem "Wim" Kok ; born September 29, 1938) is a retired Dutch politician of the Labour Party . He served as Prime Minister of the Netherlands from August 22, 1994 until July 22, 2002....

    .
  • In the Politics of Belgium
    Politics of Belgium
    Politics of Belgium takes place in a framework of a federal, parliamentary, representative democratic, constitutional monarchy, whereby the King of the Belgians is the Head of State and the Prime Minister of Belgium is the head of government in a multi-party system. Executive power is exercised by...

    , as with the Netherlands, a purple government includes liberal and social-democratic parties in coalition. Belgium was governed by Purple governments from 1999 to 2007 under the leadership of Prime Minister Guy Verhofstadt
    Guy Verhofstadt
    Guy Verhofstadt is a Belgian politician who was the 47th Prime Minister of Belgium from 1999 to 2008. He is currently a Member of the European Parliament and leader of the Group of the Alliance of Liberals and Democrats for Europe.- Early career :...

    .
  • In United States politics, a purple state is a state equally balanced between Republican
    Republican Party (United States)
    The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

    s (currently symbolized by red) and Democrat
    Democratic Party (United States)
    The Democratic Party is one of two major contemporary political parties in the United States, along with the Republican Party. The party's socially liberal and progressive platform is largely considered center-left in the U.S. political spectrum. The party has the lengthiest record of continuous...

    s (currently symbolised as blue).

Religious text

  • In the Byzantine Empire, Gospel manuscript
    Manuscript
    A manuscript or handwrite is written information that has been manually created by someone or some people, such as a hand-written letter, as opposed to being printed or reproduced some other way...

    s were written in gold lettering on parchment
    Parchment
    Parchment is a thin material made from calfskin, sheepskin or goatskin, often split. Its most common use was as a material for writing on, for documents, notes, or the pages of a book, codex or manuscript. It is distinct from leather in that parchment is limed but not tanned; therefore, it is very...

     that was colored Tyrian purple.

Sexuality

  • In early October 2010, Canadian teenager Brittany McMillan promulgated the observance of a new commemoration called Spirit Day
    Spirit Day
    In early October 2010, Canadian teenager Brittany McMillan promulgated the observance of a new commemoration called Spirit Day, the first observance of which took place on October 20, 2010, in which people wear the color purple to show support for LGBT young people who are victims of bullying...

    , the first observance of which took place on October 20, 2010, in which people wear the color purple to show support for LGBT
    LGBT
    LGBT is an initialism that collectively refers to "lesbian, gay, bisexual, and transgender" people. In use since the 1990s, the term "LGBT" is an adaptation of the initialism "LGB", which itself started replacing the phrase "gay community" beginning in the mid-to-late 1980s, which many within the...

     young people who are victims of bullying. Many Hollywood celebrities
    Celebrity
    A celebrity, also referred to as a celeb in popular culture, is a person who has a prominent profile and commands a great degree of public fascination and influence in day-to-day media...

     wore purple on this day to show their support of this cause.
  • At the 24 June 2007 San Francisco Gay Pride Parade
    San Francisco Pride
    The San Francisco Lesbian, Gay, Bisexual, Transgender Pride Celebration, usually known as San Francisco Pride, is a parade and festival held in June each year in San Francisco to celebrate the lesbian, gay, bisexual, and transgender people and their allies...

    , Yahoo passed out 3 7/16" in diameter round plastic stickers with a picture of a gay man or woman imaged as one of the Yahoo Gay Pride avatars against an HTML/CSS Purple background that said Out, Proud, and Purple.
  • The purple hand is an LGBT symbol that derives from an incident which occurred on Halloween
    Halloween
    Hallowe'en , also known as Halloween or All Hallows' Eve, is a yearly holiday observed around the world on October 31, the night before All Saints' Day...

     night (31 October), 1969, when sixty members of the Gay Liberation Front
    Gay Liberation Front
    Gay Liberation Front was the name of a number of Gay Liberation groups, the first of which was formed in New York City in 1969, immediately after the Stonewall riots, in which police clashed with gay demonstrators.-The Gay Liberation Front:...

     (GLF) and the Society for Individual Rights (SIR) staged a protest at the San Francisco Examiner in response to a series of news articles disparaging LGBT
    LGBT
    LGBT is an initialism that collectively refers to "lesbian, gay, bisexual, and transgender" people. In use since the 1990s, the term "LGBT" is an adaptation of the initialism "LGB", which itself started replacing the phrase "gay community" beginning in the mid-to-late 1980s, which many within the...

     people in San Francisco's gay bar
    Gay bar
    A gay bar is a drinking establishment that caters to an exclusively or predominantly gay, lesbian, bisexual, and transgender clientele; the term gay is used as a broadly inclusive concept for LGBT and queer communities...

    s and clubs.

Transpersonal psychology

  • In 1976, a chart by Timothy Leary
    Timothy Leary
    Timothy Francis Leary was an American psychologist and writer, known for his advocacy of psychedelic drugs. During a time when drugs like LSD and psilocybin were legal, Leary conducted experiments at Harvard University under the Harvard Psilocybin Project, resulting in the Concord Prison...

     and Robert Anton Wilson
    Robert Anton Wilson
    Robert Anton Wilson , known to friends as "Bob", was an American author and polymath who became at various times a novelist, philosopher, psychologist, essayist, editor, playwright, poet, futurist, civil libertarian and self-described agnostic mystic...

     called The Periodic Table of Energy outlining the philosophy
    Philosophy
    Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

     of Dr. Timothy Leary (The Eight Circuit Model of Consciousness) was given out by the Starflight Network, a group in Berkeley, California
    Berkeley, California
    Berkeley is a city on the east shore of the San Francisco Bay in Northern California, United States. Its neighbors to the south are the cities of Oakland and Emeryville. To the north is the city of Albany and the unincorporated community of Kensington...

     that was founded by Robert Anton Wilson to promulgate Dr. Timothy Leary's philosophy. The Eighth or Psycho-Atomic Circuit was represented on the chart by the color psychedelic purple.

Transportation planning

  • The MBTA Commuter Rail
    MBTA Commuter Rail
    The MBTA Commuter Rail serves as the regional rail arm of the Massachusetts Bay Transportation Authority, in the United States. It is operated under contract by the Massachusetts Bay Commuter Railroad Company a joint partnership of Veolia Transportation, Bombardier Transportation and Alternate...

     in Boston
    Boston
    Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. The city proper had...

     is designated with purple markings, and thus is sometimes called the Purple Line.
  • The LACMTA Purple Line
    Metro Purple Line (LACMTA)
    The Purple Line is a subway line operating between Downtown Los Angeles and Mid-Wilshire/Koreatown, Los Angeles, California in Los Angeles; one of five lines on the Metro Rail System....

     is a subway
    Los Angeles County Metro Rail
    Metro Rail is the rapid transit rail system consisting of five separate lines serving 70 stations in the Los Angeles County, California area. The new Expo line is due to enter service in early 2012. It connects with the Metro liner bus rapid transit system and also with the Metrolink commuter...

     that goes down part of Wilshire Boulevard
    Wilshire Boulevard
    Wilshire Boulevard is one of the principal east-west arterial roads in Los Angeles, California, United States. It was named for Henry Gaylord Wilshire , an Ohio native who made and lost fortunes in real estate, farming, and gold mining. Henry Wilshire initiated what was to become Wilshire...

     in Los Angeles that it has been proposed be extended all the way down Wilshire Boulevard to the Pacific Ocean.
  • The Chicago Transit Authority
    Chicago Transit Authority
    Chicago Transit Authority, also known as CTA, is the operator of mass transit within the City of Chicago, Illinois and some of its surrounding suburbs....

    's "L" line from Linden Street in Wilmette to Howard Street or the Loop (depending on time of day) is known as the Purple Line
    Purple Line (Chicago Transit Authority)
    The Purple Line of the Chicago Transit Authority is a branch line on the northernmost section of the Chicago 'L' rapid transit network. Normally, it extends south from the Wilmette terminal at Linden Avenue, passing through Evanston to Howard Street, on Chicago's northern city limits...

    .
  • The Philippine Light Rail Transit
    Manila Light Rail Transit System
    The Manila Light Rail Transit System, popularly known as the LRT, is a metropolitan rail system serving the Metro Manila area in the Philippines. Although referred to as a light rail system because it originally used light rail vehicles, it has many characteristics of a rapid transit system, such...

     system in Metro Manila designate Line 2 as the Purple Line
    Manila LRT Purple Line
    The Manila LRT Purple Line is the second line of the Manila Light Rail Transit System. The line contains eleven stations and runs over 13.8 kilometers of mostly elevated track, with the exception of Katipunan station, which is underground...

    . Line 2 runs from Santolan in Pasig-Marikina area up to Recto in Manila. Other light transit systems in Metro were designated as the Blue Line (MRT-3, running along EDSA) and Yellow Line (running from Baclaran to Roosevelt Ave.).

Vexillology

  • While in the rest of the world, red represents communism
    Communism
    Communism is a social, political and economic ideology that aims at the establishment of a classless, moneyless, revolutionary and stateless socialist society structured upon common ownership of the means of production...

     or socialism
    Socialism
    Socialism is an economic system characterized by social ownership of the means of production and cooperative management of the economy; or a political philosophy advocating such a system. "Social ownership" may refer to any one of, or a combination of, the following: cooperative enterprises,...

     and purple (or white
    White
    White is a color, the perception of which is evoked by light that stimulates all three types of color sensitive cone cells in the human eye in nearly equal amounts and with high brightness compared to the surroundings. A white visual stimulation will be void of hue and grayness.White light can be...

    ; yellow
    Yellow
    Yellow is the color evoked by light that stimulates both the L and M cone cells of the retina about equally, with no significant stimulation of the S cone cells. Light with a wavelength of 570–590 nm is yellow, as is light with a suitable mixture of red and green...

     in China
    China
    Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

    , Vietnam
    Vietnam
    Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

    , Laos
    Laos
    Laos Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ Sathalanalat Paxathipatai Paxaxon Lao, officially the Lao People's Democratic Republic, is a landlocked country in Southeast Asia, bordered by Burma and China to the northwest, Vietnam to the east, Cambodia to the south and Thailand to the west...

    , Cambodia
    Cambodia
    Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

    , and Thailand
    Thailand
    Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

    ) represents monarchism
    Monarchism
    Monarchism is the advocacy of the establishment, preservation, or restoration of a monarchy as a form of government in a nation. A monarchist is an individual who supports this form of government out of principle, independent from the person, the Monarch.In this system, the Monarch may be the...

    , in Spain
    Spain
    Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

    it is just the opposite—red represents monarchism and purple represents the common people.

Further reading

  • "The perception of color", from Schiffman, H.R. (1990) Sensation and perception: An integrated approach (3rd edition). New York: John Wiley & Sons.
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