The national flag

Flag

A flag is a piece of fabric with a distinctive design that is usually rectangular and used as a symbol, as a signaling device, or decoration. The term flag is also used to refer to the graphic design employed by a flag, or to its depiction in another medium.The first flags were used to assist...

 of the Solomon Islands

Solomon Islands

Solomon Islands is a sovereign state in Oceania, east of Papua New Guinea, consisting of nearly one thousand islands. It covers a land mass of . The capital, Honiara, is located on the island of Guadalcanal...

was adopted officially on November 18, 1977. The five main island groups are represented by the five stars. The blue is supposed to represent the surrounding ocean, while the green represents the land. The yellow stripe is symbolic of the sunshine.

The civil ensign

Civil ensign

The civil ensign is the national flag flown by civil ships to denote nationality...

 (for merchant ships) and state ensign (for non-military government vessels) are red and blue flags, respectively, with the national flag in the canton

Flag terminology

Flag terminology is a jargon used in vexillology, the study of flags, to describe precisely the parts, patterns, and other attributes of flags and their display.-Description of standard flag parts and terms:...

.
The naval ensign (for police vessels) is based on the British white ensign

White Ensign

The White Ensign or St George's Ensign is an ensign flown on British Royal Navy ships and shore establishments. It consists of a red St George's Cross on a white field with the Union Flag in the upper canton....

, a red cross on a white field, also with the national flag in the canton.