[csswg-drafts] Clarify that there is no RCS for `rgba()` or `hsla()` (#7018)

svgeesus has just created a new issue for https://github.com/w3c/csswg-drafts:

== Clarify that there is no RCS for `rgba()` or `hsla()` ==
@weinig [noted on wpt](https://github.com/web-platform-tests/wpt/pull/32711): 

> Testing that hsla(from ...) and rgba(from ...) are not valid in the relative color syntax (but rgb(from ...) and hsl(from ...) are). Would like confirmation that this is correct

Confirmed, see the grammar at [rgb(from](https://drafts.csswg.org/css-color-5/#relative-RGB) and [hsl(from](https://drafts.csswg.org/css-color-5/#relative-HSL). However, I will add examples with non-unity alpha just to make that clearer.


Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/7018 using your GitHub account


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Received on Monday, 7 February 2022 17:31:48 UTC