An arc of spectral colors - often seen in the sky - caused by refection of the sun's rays. 

Has the following associated colors: Red, Orange, Yellow, Green, Blue, Indigo, and Violet - collectively known as "ROY G BIV."

h4. See also

* [[colorful]]
* [[double rainbow]]
* [[rainbow background]]
* [[rainbow hair]]
* [[rainbow order]]
* [[rainbow gradient]]
* [[rainbow path]]
* [[rainbow text]]
* [[Tag Group:Colors]]
虹 彩虹