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Accessible Palette vs K’uychi: catalog facts
Accessible Palette	K’uychi
Free Free to use in the browser; no paid tier is mentioned on the page.	Free Free and open source under Blue Oak Model License 1.0.0.
Web	Linux
Consistent perceived lightness across hues Shows WCAG 2 and WCAG 3 contrast for each step	Generates lighter and darker shades from a base color Uses OKLab for perceptual uniformity
Assumes familiarity with LCh values Developer and export options are not described on the page	Linux desktop application
Web application	Downloadable app
Closed source	Open source
License not stated	License: BlueOak-1.0.0
No account needed	Not stated if an account is 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 October 8, 2026

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