If you're interested about the math behind how humans perceive the colors: https://en.wikipedia.org/wiki/Color_difference https://en.wikipedia.org/wiki/Color_di

If you're interested about the math behind how humans perceive the colors: https://en.wikipedia.org/wiki/Color_difference https://en.wikipedia.org/wiki/Color_difference You realize the importance of it when you try to calculate the difference between two colors simply by comparing lets say red green and blue in a color with rgb format.