We might be told that color has something to do with light, or even be shown a prism, through which light refracts to produce a rainbow. This is true, but the human brain and visual system can ...

MANNINGTON, W.Va. (WBOY) — A Marion County resident saw a rainbow cloud over the weekend, even though it wasn’t raining.

But in our culture, we would say that we see seven color categories in the rainbow: red, orange, yellow, green, blue, indigo and violet. That’s historical and cultural.