For software engineers wanting to know more about this subject I highly recommend this article: https://en.wikipedia.org/wiki/CIE_1931 https://en.wikipedia.org

For software engineers wanting to know more about this subject I highly recommend this article: https://en.wikipedia.org/wiki/CIE_1931 https://en.wikipedia.org/wiki/CIE_1931 Human color vision is a lot more complicated than it seems at first. The sensitivity curves of the actual receptors in the eye do not directly match our physiological perception curves for red, green, and blue. The red perception curve even has some negative (!) values. There is a lot of neurological processing involved and that is why colorspace models are so complicated and imperfect. There is no simple absolute "RGB" mapping like I and many others have naively assumed before digging into it.