ROYGBIV is an acronym for the visible part of the electromagnetic light spectrum:
- 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...
- Orange
- 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...
- Green
Green is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nanometres. In the subtractive color system, it is not a primary color, but is created out of a mixture of yellow and blue, or yellow and cyan; it is considered...
- 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...
- Indigo
Indigo is a color named after the purple dye derived from the plant Indigofera tinctoria and related species. The color is placed on the electromagnetic spectrum between about 420 and 450 nm in wavelength, placing it between blue and violet...
- Violet
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...
A rainbow spans a continuous spectrum of colors; the distinct bands are an artifact of human
color visionColor vision is the capacity of an organism or machine to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit...
. In
ROYGBIV, the colors are arranged in the order of decreasing
wavelengthIn physics, the wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats.It is usually determined by considering the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings, and is a...
s, with red being 650 nm and violet being about 400 nm.
The reverse
VIBGYOR is used in many Commonwealth countries.
History
In
Classical AntiquityClassical antiquity is a broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of ancient Greece and ancient Rome, collectively known as the Greco-Roman world...
,
AristotleAristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...
claimed there was a fundamental scale of seven basic colors. In the Renaissance, several artists tried to establish a new sequence of up to seven primary colors from which all other colors could be mixed. In line with this artistic tradition,
NewtonSir Isaac Newton PRS was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived."...
divided his color circle, which he constructed to explain additive color mixing, into seven colors. His color sequence including the
tertiary colorA tertiary color is a color made by mixing one primary color with one secondary color, in a given color space such as RGB or RYB.Unlike primary and secondary colors, these are not represented by one firmly established name each, but the following examples include some typical names.Brown and grey...
indigoIndigo is a color named after the purple dye derived from the plant Indigofera tinctoria and related species. The color is placed on the electromagnetic spectrum between about 420 and 450 nm in wavelength, placing it between blue and violet...
is kept alive today by the
Roy G. Biv mnemonic. Originally he used only five colors, but later he added orange and indigo, in order to match the number of musical notes in the
major scaleIn music theory, the major scale or Ionian scale is one of the diatonic scales. It is made up of seven distinct notes, plus an eighth which duplicates the first an octave higher. In solfege these notes correspond to the syllables "Do, Re, Mi, Fa, Sol, La, Ti/Si, ", the "Do" in the parenthesis at...
.
The
Munsell color systemIn 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...
, the first formal color notation system (1905), names only five "principal hues":
redRed 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...
,
yellowYellow 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...
,
greenGreen is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nanometres. In the subtractive color system, it is not a primary color, but is created out of a mixture of yellow and blue, or yellow and cyan; it is considered...
,
blueBlue 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
purplePurple is a range of hues of color occurring between red and blue, and is classified as a secondary color as the colors are required to create the shade....
(although note that Munsell's purple is not a
spectral hueA 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...
).
Another traditional mnemonic device has been to turn the initial letters of seven spectral colors into a sentence. In
BritainThe United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
the most common is "Richard Of York Gave Battle In Vain." The mnemonic is said to refer to the defeat and death of
Richard, Duke of YorkRichard Plantagenêt, 3rd Duke of York, 6th Earl of March, 4th Earl of Cambridge, and 7th Earl of Ulster, conventionally called Richard of York was a leading English magnate, great-grandson of King Edward III...
at the
Battle of WakefieldThe Battle of Wakefield took place at Sandal Magna near Wakefield, in West Yorkshire in Northern England, on 30 December 1460. It was a major battle of the Wars of the Roses...
. In order to avoid reference to this defeat, people from Yorkshire developed the alternative "
RowntreesRowntree's was a confectionery business based in York, England. It is now a historic brand owned by Nestlé, used to market a range of fruit gums and pastilles formerly owned by Rowntree's. Following a merger with John Mackintosh & Co., the Company became known as Rowntree Mackintosh, was listed on...
Of York Gave Best In Value." Alternatively, the biblically inspired "Read Out Your Good Book In Verse" may be used.
In popular culture
"Roygbiv" is a song from
Boards of CanadaBoards of Canada are a Scottish electronic music duo consisting of brothers Mike Sandison and Marcus Eoin...
albums
Boc Maxima and
Music Has the Right to ChildrenMusic Has the Right to Children is the debut public album of the Scottish electronic music duo Boards of Canada. It was published by Warp Records and released on 20 April 1998 in Europe and 20 August in the United States...
, and has been covered many times by electronic dance band STS9.
"Roy G. Biv" is a song from the
They Might Be GiantsThey Might Be Giants is an American alternative rock band formed in 1982 by John Flansburgh and John Linnell. During TMBG's early years Flansburgh and Linnell were frequently accompanied by a drum machine. In the early 1990s, TMBG became a full band. Currently, the members of TMBG are...
album
Here Comes Science-Personnel:They Might Be Giants*John Linnell – lead vocals on 2, 4, 6, 7, 8, 9, 12, 14, 17, 19, 20; backup vocals on 10, 16; keyboards; etc.*John Flansburgh – lead vocals on 1, 7, 8, 10, 11, 13, 16, 18, 19; backup vocals on 5, 17; guitar; etc....
. ROY G BIV is a song from 3lbs of Love.
Roy G. Biv was a recurring character in the children's television series
Beakman's WorldBeakman's World is an educational children's television show produced by ELP Communications, Columbia Pictures Television, Universal Belo Productions, and Columbia TriStar Television Distribution....
, played by
Paul ZaloomPaul Finley Zaloom is a U.S. actor and puppeteer best known for his role as the character Beakman on the television show Beakman's World.-Career:...
.
Roy G. Biv was also a pseudonym for the evil mastermind behind the plot of Sam & Max Season One.
Roy-G-BIV was the name of an example character in the
ParanoiaParanoia is a dystopian science-fiction tabletop role-playing game originally designed and written by Greg Costikyan, Dan Gelber, and Eric Goldberg, and first published in 1984 by West End Games. Since 2004 the game has been published under licence by Mongoose Publishing...
role-playing game, a pun about the great importance of the seven colors in the game's gameplay.
Roy G. Bivolo is the real name of the supervillain
Rainbow RaiderRainbow Raider is a fictional supervillain in the DC Comics universe. His real name is a pun based on the acronym "ROYGBIV" , a mnemonic for the colors of a rainbow.He first appeared in The Flash vol...
an enemy of the
Flash (comics)The Flash is a name shared by several fictional comic book superheroes from the DC Comics universe. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in Flash Comics #1 ....
who uses spectral light as his powers.