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ColorBox vs Accessible Palette: catalog facts
ColorBox	Accessible Palette
Best for: Designers building color scales for a design system	Best for: Designers building accessible multi-hue color systems
Free Free to use in the browser; no paid tier is shown on the page.	Free Free to use in the browser; no paid tier is mentioned on the page.
Web	Web
Fine control over each channel with easing curves Shows contrast ratios for every step All 3 strengths for ColorBox Fine control over each channel with easing curves Shows contrast ratios for every step Exports to Tailwind CSS, OKLCH and Swift	Consistent perceived lightness across hues Shows WCAG 2 and WCAG 3 contrast for each step All 3 strengths for Accessible Palette Consistent perceived lightness across hues Shows WCAG 2 and WCAG 3 contrast for each step Handles several hues side by side
Curve-based controls take some learning Aimed at systematic scales rather than quick inspiration	Assumes familiarity with LCh values Developer and export options are not described on the page
Web application	Web application
Not open source	Not open 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 Sources for ColorBox colorbox.io Catalog checked September 23, 2026	Official website Full listing and sources Sources for Accessible Palette accessiblepalette.com Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.