Find and fix accessibility issues across design, code, and live products up to 10x faster than competitors
A collection of open-source libraries and tools built by Khan Academy for developers, spanning JavaScript utilities, React components, machine learnin...
Test multiple foreground and background color combos for WCAG 2.0 minimum contrast compliance — all in one grid.
Free, open source accessibility testing tools for developers and designers to identify and fix web accessibility issues
Automated accessibility testing for web and mobile with zero false positives, AI-powered checks, and seamless CI/CD integration.
Check your color pairs against WCAG 2.0 contrast ratios — free, instant, and no sign-up required
Check color contrast ratios, meet WCAG accessibility standards, and find colors that work for everyone.
