I like some colors and you may be some other. But is it possible that you and me are liking the same colors, but have different names fot it. The wavlength that produces a sensation of red color in my brain, is producing the sensation of green color in yours and that which produces red in you, seems to me being blue. So, when I say I like red, you think its green and you do not like it. And when you say you like blue, I may not like it. But , actually we both are liking the same wavelength. We are not able to make out the difference because since childhood, we have perceived these colors with different names. What the logic behind this difference in color perception, or I must say wavelength perception ?