Use TPGi's free colour contrast checker to optimize your content - including text and visual elements - for individuals with color-blindness or low vision impairments.

A first-of-its-kind solution that delivers assistive technology user feedback directly to the organizations seeking to deliver accessible digital experiences.

Robust, efficient and accurate accessibility testing tools for all Built on the world’s most popular accessibility testing library, axe-core. Deque’s suite of axe tools offers full coverage for your testing and compliance needs.

A website for getting different information for colors (different formats, complementary color) , especial a color blindness simulator.

Free and open source. Solve accessibility issues before they reach your customers.

TPGi’s on-demand single-page accessibility testing tool. Use it to remediate failures surfaced in ARC Monitoring scans or as a QA tool.