Re: [w3ctag/design-reviews] CSS Color: lab(), lch() (#488)

> (Note as well the line in that comment "Nowadays it also doesn’t really make sense to use CIELUV for anything.")

According to [this paper](https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-25-13-15131&id=368272)
> CIELAB ( *
L , * a , * b ) is recommended for the colorant industries (surface colors) while CIELUV ( *L , * u , * v ) for the display (self-luminous colors) industries.

As I previously write (see reference to Ross Ihaka), for the same reason polar Luv (HCL) is widly used in R lang community.

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