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

Why Lab proposed as main perceptual uniformity color space for color 4?
Why not more modern CAM 16 or JzAzB?

And why proposed to use Lab instead of Luv?
Here reference to Ross Ihaka: 

> Ihaka et al. (2003): The two perceptually based spaces introduced by the
> CIE in 1976 are the CIELUV and CIELAB spaces. The CIELUV space is
> generally preferred by those who work with emissive colour technologies
> (such as computer displays) and the CIELAB space is preferred by those
> working with dyes and pigments (such as in the printing and textile
> industries),

see https://www.r-project.org/conferences/DSC-2003/Proceedings/Ihaka.pdf
> 

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