Re: [csswg-drafts] [css-color-4] Should lab() colors which are outside the sRGB gamut be rendered on capable displays? (#4646)

The CSS Working Group just discussed `Should lab() colors which are outside the sRGB gamut be rendered on capable displays?`.

<details><summary>The full IRC log of that discussion</summary>
&lt;dael> Topic: Should lab() colors which are outside the sRGB gamut be rendered on capable displays?<br>
&lt;dael> github: https://github.com/w3c/csswg-drafts/issues/4646<br>
&lt;dael> smfr: Apple display supports P3 which is wider. Makes sense to allow an author to get brighter colors. An author working on a lower gamut display may spec colors outside srgb and thye don't know it.<br>
&lt;dael> leaverou: That can happen. Thre are monitors smaller than srgb. Current colors have this problem<br>
&lt;dael> chris: smfr I assumed question was retorical and you're saying chris please document this<br>
&lt;dael> smfr: I wanted to it be clear we're not using lab as a way to spec things immediately converted to srgb<br>
&lt;dael> chris: Yes. Thank you<br>
&lt;dael> AmeliaBR: Suggestion is that the default behavior is use max gamut available on device and if you want clamping you need to use workin color space<br>
&lt;dael> leaverou: Could wrap in rgb funt<br>
&lt;dael> chris: Mainly needs to say use widest gamut possible and therefore clamp as late as possible<br>
&lt;Rossen_> s/funt/func/<br>
&lt;dael> dbaron: Should space say how to deal with displays with narrower gamuts?<br>
&lt;dael> dbaron: Rendering intent in SVG<br>
&lt;dael> chris: Yes, exactly. I plan to use that b/c currently have horrible per component clamping. As you say there's this metrec that's much more internded<br>
&lt;dael> myles: Is this tested?<br>
&lt;dael> chris: Reference modes, yeah<br>
&lt;dael> florian: Follow up. When you say gamut is smaller I suspect displays less then srgb we pretend is srgb?<br>
&lt;dael> chris: Yes. Highly sub srgb probably don't have color profiles so you get what you get.<br>
&lt;TabAtkins> Hm, testing is interesting here. Does the output's gamut affect computed values?<br>
&lt;dael> Rossen_: Anything else on this?<br>
&lt;TabAtkins> I don't think it does, so this would be purely visual.<br>
</details>


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Received on Wednesday, 8 January 2020 17:38:13 UTC