my reasoning: the actual colors we can see -> the wavelengths that we can extrapolate to -> basically extrapolated wavelengths plus an 'unpure-ness' factor -> not even real wavelengths (ok well king blue and maybe lavender if I'm being generous could be)
๐ค โ๏ธ Actually black and white are shades, not colours.
So is brown. Brown is dark orange.
I guess the hue and maybe saturation are undefined there according to most color models (HSL would have hue and saturation undefined for white but HSV would only have hue undefined)
From a colour theory perspective, tints are when you add white, tones are when you add grey and shades are when you add black.