Re: [csswg-drafts] [css-color-5] Make channel values in relative color syntax optional (#10689)

The CSS Working Group just [discussed](https://www.w3.org/2025/08/19-css-color-minutes.html#c3a6) `[css-color-5] Make channel values in relative color syntax optional](https://github.com/w3c/csswg-drafts/issues/10689)` and agreed to the following:

 * `[css-color-5] Make channel values in relative color syntax optional](https://github.com/w3c/csswg-drafts/issues/10689)`

<details><summary>The full IRC log of that discussion</summary>
ChrisL: the idea is lot of use case are deal by a new relative color syntax when you dont specifify the color space because you just want to change the alpha <br>
<TabAtkins> `alpha(&lt;color> / &lt;alpha>)` <br>
ChrisL: Im proposing a new relative syntax for just changing the alpha : alpha(&lt;color> / &lt;alpha>) <br>
ChrisL: 2 syntaxes proposed : alpha or opacity <br>
ChrisL: people prefers alpha <br>
TabAtkins: I think its a good move <br>
<ChrisL> proposal: add an alpha-only RCS function `alpha()` <br>
lea: I though the thread was about making components optional in RCS <br>
ChrisL: the good part of this new syntax is that you dont have to specifiy the color space which prevent mistakes <br>
`RESOLUTION: add an alpha-only RCS function `alpha()`` <br>
</details>

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Received on Tuesday, 19 August 2025 13:48:29 UTC