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Accessible Brand Colors vs Colour Contrast Analyser: catalog facts
Accessible Brand Colors	Colour Contrast Analyser
Free Free to use in the browser.	Free Free to download, with source code published on GitHub.
Web	Windows, macOS
Tests all combinations of a palette at once Designed around brand palettes	Screen-wide eyedropper for foreground and background Results for WCAG 2.0, 2.1 and 2.2
Checks contrast only, with no palette editing Not open source	Windows and macOS only Checks one color pair at a time
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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