I think the parent was referring to the lack of properties like perceptual uniformity in RGB or HSV colour spaces. Check out the "Advantages" section on this Wi

I think the parent was referring to the lack of properties like perceptual uniformity in RGB or HSV colour spaces. Check out the "Advantages" section on this Wikipedia page: https://en.m.wikipedia.org/wiki/Lab_color_space https://en.m.wikipedia.org/wiki/Lab_color_space