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

It is still a good practice to use the u' v' chromaticity diagram (in preference to the xy chromaticity diagram), but what I can remember reading from multiple color science sources is that CIELAB has better performance than CIELUV for essentially all applications, including for comparing colors from emissive displays, gamut mapping, etc. I’m not doing a good job finding a reference in 2 minutes here though.

If you want something better than CIELAB there has been work on this more recent than the 1970s. Just because the R community uses something doesn’t mean it should be baked into every web browser.

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