Colour contrast checker to check for accessibility issues.

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

Meet TestCraft, your AI-powered assistant in software testing.

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

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