Colorable
Calculate contrast between every pair in a predefined colour palette.
What’s included for free?
Free JavaScript palette-testing utility with WCAG contrast scores and threshold filtering. Requires code integration or a compatible wrapper; it is not a complete website accessibility audit.
Where it runs: Local install
Provider information ↗Checked 2026-10-16
Before you use it
MIT licence; keep required notices when distributing the software. Supplied brand palettes retain their original rights.
Provider terms can change. Check current pricing and usage rights before starting a project.