A tool that brings attention and understanding to how color contrast can affect people with different visual impairments.

Expanding the potential of the web for people with disabilities by empowering individuals and organizations to create accessible content.

Test your background and text contrast ratio based on Web Content Accessibility Guidelines (WCAG), and automatically find the closest accessible colors.

A repository of guidance & resources for organisations & individuals aiming to improve digital accessibility, across web development, documents & digital media

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Check the contrast ratio between your website’s background and text colors using this free tool, designed to meet WCAG guidelines

Test Web accessibility compliance for your Web content and get audit reports

Solve accessibility issues before they reach your customers.

Pa11y is your automated accessibility testing pal.

WAVE® is a suite of evaluation tools that helps authors make their web content more accessible to individuals with disabilities. WAVE can identify many accessibility and Web Content Accessibility Guideline (WCAG) errors, but also facilitates human evaluation of web content. Our philosophy is to focus on issues that we know impact end users, facilitate human evaluation, and to educate about web accessibility.