[css-color-5] Does relative colors support current color?

[tiaanl]

The origin color for the relative color syntax takes a <color> so I assume that includes the currentcolor keyword. I don't see a specific mention of this, in the spec but according to wpt (and the implementation in WebKit) currentcolor is not tested/supported.

Most notably if it is supported I guess we should be able to serialize the relative syntax as rgb(from currentcolor r g b) and not an already computed color.

[tabatkins]

Yup, currentcolor is a <color> so it should work. If we're lacking tests, that's something that should be fixed.

[Loirooriol]

From https://drafts.csswg.org/css-color-5/#resolving-rcs

Otherwise (if currentColor was used in the function), the computed value is the Relative Color Syntax function with each <color> parameter resolved according to CSS Color 4 §  14. Resolving <color> Values, thus preserving inheritance into child elements.

nested-color-mix-with-currentcolor.html is listed as a test, but it's about color-mix(), so it should be in https://drafts.csswg.org/css-color-5/#resolving-mix instead?

[svgeesus]

parsing/color-computed-relative-color.html does not test currentColor, and should. Same for parsing/color-valid-relative-color.html

[svgeesus]

nested-color-mix-with-currentcolor.html is listed as a test, but it's about color-mix(), so it should be in https://drafts.csswg.org/css-color-5/#resolving-mix instead?

Yes, it should.

[svgeesus]

16 currentColor in RCS tests which currently, no-one passes