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Firefox Nightly adds color-mix() with 1+ color arguments#29214

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dletorey wants to merge 27 commits intomdn:mainfrom
dletorey:43202-color-mix-multiple-color-arguments
Open

Firefox Nightly adds color-mix() with 1+ color arguments#29214
dletorey wants to merge 27 commits intomdn:mainfrom
dletorey:43202-color-mix-multiple-color-arguments

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@dletorey
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@dletorey dletorey commented Mar 9, 2026

Summary

  • Added color-mix() more then 2 color arguments

Test results and supporting details

  • This code pen passes in:
    • Firefox Nightly 150.0a1 (2026-03-09)
    • With Flag layout.css.color-mix-multi-color.enabled:
      • Firefox Developer Edition 149.0b6 (aarch64)
      • Firefox Beta 149.0b6 (aarch64)
  • And Fails in:
    • Firefox 148.0 (aarch64)
    • Chrome Canary 147.0.7725.0
    • Edge Canary 147.0.3906.0
    • Safari Technical Preview Release 236 (WebKit 20625.1.1.19.1)
    • Opera 128.0.5807.52

Related issues

@github-actions github-actions bot added data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS size:m [PR only] 25-100 LoC changed labels Mar 9, 2026
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github-actions bot commented Mar 9, 2026

Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

@romainmenke
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Related issue: #28732

dletorey and others added 2 commits March 24, 2026 11:03
Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>
@dletorey dletorey requested a review from caugner March 24, 2026 11:06
@caugner caugner changed the title added support for color-mix() with multiple color arguments Firefox Nightly adds color-mix() with 1+ color arguments Mar 24, 2026
dletorey and others added 4 commits March 25, 2026 07:49
Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>
Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>
Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>
Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>
@dletorey dletorey requested a review from caugner March 25, 2026 07:52
@dletorey
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Thank you @caugner

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data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS size:m [PR only] 25-100 LoC changed

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4 participants