@River You think thats weird, what is really weird is the colors we see are mostly lies. Two colors that look identical to us can be completely unrelated to eachother.
For example two things can look green, indistinguishable. But one is in fact a mixing of blue and yellow light while the other is pure green (a single frequency).
Cooler yet if you take those two items and put them under a light that is itself pure green then the pure green object would look green and the blue+yellow form of green would look black.
If you ever have colored lights play with it.