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The differences in eye color perception from individual to individual means that we must take into account what colors are used for certain types of documentation or road signs. Most humans are capable of perceiving the color red and therefore it is one of the eye-catching colors used in very important signs.
Share This article Probably the hardest concept to fully grasp about color is that color is all in your head. Literally. Itâs a sensation, just like touch. Like any other sensation itâs (usually) caused by physical reality. But it doesnât have any physical reality of itâs ownâat least not outside your body.