The Forbidden Colors Your Eyes Can't See

Don't even bother making reddish...  ...ven bother making reddish green or yellowish blue colors . Your eyes simply can't see them:...  ...Red-green and yellow-blue are the so-called " forbidden colors ." Composed of pairs of hues whos...  ...The limitation results from...

http://www.neatorama.com/2012/01/19/the-forbidden-colors-your-eyes-cant-see/