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WebAIM Contrast Checker vs Accessible Color Generator: catalog facts
WebAIM Contrast Checker	Accessible Color Generator
Free Free to use.	Free Free to use in the browser.
Web	Web
Separate results for normal text, large text and UI components Alpha and lightness controls for adjusting colors	Suggests the nearest accessible variation instead of just a pass or fail Supports both AA and AAA targets
Checks one color pair at a time Does not scan a live page	Works on one color pair at a time Page promotes the developer's courses and newsletter
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.