Re: [csswg-drafts] [css-color-5] Declared value serializations of absolute and relative colors (#10305)

The CSS Working Group just [discussed](https://www.w3.org/2025/08/19-css-color-minutes.html#5ccd) `[css-color-5] Declared value serializations of absolute and relative colors` and agreed to the following:

 * `RESOLUTION: for all new color syntax introduced since color 4 ; serialization of `calc()` tree should serialize normally (as computed value)`

<details><summary>The full IRC log of that discussion</summary>
ChrisL: historically we started by the declared and computed is what you serialize <br>
ChrisL: its actually not true for named color, currentcolor, transparent<br>
ChrisL: Sam W points out that we lose stuff like calc()<br>
ChrisL "Should the declared value serialization of all RCS colors maintain follow the first paragraph of section 11.2, or does the first paragraph only apply to RCS colors that have currentcolor origin colors?"<br>
TabAtkins [w3c/csswg-drafts#10305 (comment)](https://github.com/w3c/csswg-drafts/issues/10305#issuecomment-2125440877)<br>
TabAtkins: especially for RCS how much information do we preserve ?<br>
TabAtkins: for old color syntax, we are stuck anyway<br>
TabAtkins: for new syntax, lets not carry this behavior : we should compute like other properties so calc() tree are preserved for serialization<br>
TabAtkins TabAtkins: I bleieve this is Sam's request, too<br>
matthieud: so currentcolor should serialize currentcolor for modern syntax<br>
proposal: for all new color syntax introduced since color 4 ; serialization of calc() tree should serialize normally (as computed value)<br>
RESOLUTION: for all new color syntax introduced since color 4 ; serialization of calc() tree should serialize normally (as computed value)<br>
</details>

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Received on Tuesday, 19 August 2025 14:13:42 UTC