Hello blink-dev!

Chromium currently allows wide color gamut colors to be rendered via
images, video, and canvases. Missing from this party are wide color gamut
CSS colors. Rumblings <http://crbug.com/1308932> have already begun deep in
the bowels of the Chromium paint and compositing systems, which will
prepare the ground for this. Before they spill over to blink, here is our
intent to prototype CSS Color Level 4!

Contact emailsccame...@chromium.org, fs...@chromium.org,
aaro...@chromium.org, juanm...@chromium.org

Specificationhttps://www.w3.org/TR/css-color-4

Summary

CSS Color Level 4 allows specifying CSS colors that are not limited to the
sRGB color gamut.

Blink componentBlink>Compositing
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECompositing>

Motivation

CSS Color Level 4 allows specifying colors outside of the sRGB color gamut.
Images, videos, and canvases (2D and WebGL) can currently specify such
colors, but CSS is limited to the sRGB color gamut.

TAG review statusNot started

Risks


Interoperability and Compatibility



*Gecko*: No signal

*WebKit*: Shipped/Shipping (
https://webkit.org/blog/10042/wide-gamut-color-in-css-with-display-p3)

*Web developers*: No signals

WebView application risks

None.



Debuggability

This feature will need integration with DevTools (the form that that takes
will need to be determined).


Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?Many tests are present here
<http://third_party/blink/web_tests/external/wpt/css/css-color/>.

Flag nameNone yet.

Requires code in //chrome?No.

Tracking bughttps://crbug.com/1333988

Estimated milestones

No milestones specified


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6280020765966336

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

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