Re: [csswg-drafts] [css-color-4] Channel clipping breaks author expectations, especially when using 'perceptually uniform' spaces (#9449)

My wife had an XDR monitor on her mac, and yes, I was able to produce the eye melting magenta 🙂,  so yes, I can confirm that the brilliant magenta is a very vivid, but light magenta.

With this confirmed, I think the problem is that you are trying to preserve HDR colors in an SDR spec and treating all the SDR gamuts as if you are processing HDR colors. I don't think this is the right thing to do. This would seem to favor chroma over the constant lightness, and in the majority of CSS use cases, I don't think this what an author would expect.

Authors don't want to get dark colors for lightness 90%. They want to preserve lightness to preserve contrast with their text and such. They aren't working in HDR gamuts. Yes one day they may, but it seems like there should be a distinction for when to use HDR tone mapping.

The right tool for the right job needs to be used. I don't think this is the right tool for the CSS Color Level 4 spec. HDR tone mapping will need its own considerations and should be included in the HDR color spec.

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Received on Thursday, 7 March 2024 02:30:51 UTC