Re: [csswg-drafts] [css-color] color-contrast() default algorithm (#7361)

The CSS Working Group just discussed `default algorithm`.

<details><summary>The full IRC log of that discussion</summary>
&lt;emilio> Topic: default algorithm<br>
&lt;fantasai> github: https://github.com/w3c/csswg-drafts/issues/7361<br>
&lt;dbaron> s/Topic:/Subtopic:/<br>
&lt;emilio> fantasai: (1) use UA default that can change over time, (2) wcag2 forever, (3) always required<br>
&lt;emilio> (4) mandatory for now, default later<br>
&lt;emilio> (5) changing default, but only without candidates, so either white or black<br>
&lt;emilio> fantasai: so you don't have these more subtle color distinctions<br>
&lt;lea> so it will basically be only contrast-color(over var(--color))?<br>
&lt;TabAtkins> yes<br>
&lt;emilio> ... we can use wcag2 by default now and change it, without more subtle changes<br>
&lt;emilio> chris: I disagree with lots, first that white / black are not much change<br>
&lt;emilio> florian: it won't chose between brand color and something else<br>
&lt;emilio> chris: wcag2 default is problematic. I'd formally object to that<br>
&lt;emilio> s/I/ we already have a formal objection<br>
&lt;dbaron> s/I'd formally object/We already have a formal objection/<br>
&lt;emilio> TabAtkins: to get around that we can leave the algo undefined to UA determination<br>
&lt;lea> if we can also provide the algorithm, we've just resolved #7345<br>
&lt;emilio> florian: It's probably good to not say it's WCAG, which means people wouldn't rely on it for legal reasons<br>
&lt;una> I love the usefulness of `contrast-color(over var(--color))`<br>
&lt;emilio> astearns: so with option five you it's invalid if you provide candidates?<br>
&lt;emilio> fantasai: yes<br>
&lt;lea> q+<br>
&lt;emilio> astearns: if we go for (5) we also go for (4) when we have candidates?<br>
&lt;emilio> fantasai: yes<br>
&lt;astearns> ack lea<br>
&lt;emilio> lea: wanna point out since we are about to resolve in the simplified form, if we can also provide an algo, can we resolve #7345 first that allows us to avoid candidates?<br>
&lt;una> q+<br>
</details>


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Received on Tuesday, 2 August 2022 18:35:41 UTC