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Adrian Roselli
@aardrian.bsky.social

This is doing rounds on Masto. I’ve no idea if so here, but better safe than sorry. mastodon.social/@marcedwards... APCA is no longer part of WCAG3. You can use it, but for conformance (legal, policy, etc.) reasons you will still need to follow WCAG2. It’s possible to satisfy both in most cases.

mastodon.socialMarc Edwards (@marcedwards@mastodon.social)Attached: 1 image 2025 should be the year you stop using WCAG 2 colour contrast testing, and switch to APCA. This article is a few years old, and covers everything well. https://blog.datawrapper.de/c...
Christian "Schepp" Schaefer
@schepp.dev

Service skeet: @ichimnetz.com + team made a color contrast tester that evaluates against both calculation systems simultaneously: palette-tester.9elements.com BTW, I'm as much of a huge fan of APCA as I'm of OKLAB + OKLCH. All those systems that adhere to human perception make so much more sense! 👏🏻

palette-tester.9elements.comAccessible Color Palette TesterCreate and test color palettes for WCAG & APCA contrast compliance. Name, reorder, and compare colors with real-time contrast ratings. Save & share via URL.

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