Re: [csswg-drafts] [css-color-4] Expand the concept of analogous components to analogous sets of components to minimize `none` → `0` conversions (#10210)

Reopened this issue because I encountered an outcome with `hwb` that I didn't expect.
But I think this is actually fine and working as intended.

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`hwb(50deg none none)` for example is a bright yellow.
When converted to `lch` it becomes pure black for display `lch(none none 87.2)`.

So in relative colors this can be surprising: `lch(from hwb(50deg none none) l c h)` becomes black.

But when mixing or assigning values to `l` and `c` in relative colors this will work as intended -> preserving the hue and `none` values.


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Received on Wednesday, 22 April 2026 07:28:13 UTC