[interroboink]

Since you seem to know, and I am curious, doesn't CIE[1] effectively use RGB to describe its space, too? Eg: the r̅(λ) g̅(λ) b̅(λ) color matching functions? Or is there something else in CIE you're referring to?

[1] https://en.wikipedia.org/wiki/CIE_1931_color_space