Source of Rainbow

TITLE:Rainbow (虹)
[[Weather]] >  [[Rainbow]] | [[ColorName]]

- [https://ja.wikipedia.org/wiki/%E8%99%B9 https://ja.wikipedia.org/wiki/虹]

* 色名 [#colorname]

- https://en.wikipedia.org/wiki/ROYGBIV
>
ROYGBIV is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo, and violet.