UI color accessibility auditor
Enter your brand colors. We build a contrast-ratio matrix and flag which pairs pass WCAG AA (≥4.5) and AAA (≥7).
About this tool
UI color accessibility auditor is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Color & Design. Browse more Color & Design tools.