Color Contrast Checker
Check WCAG color contrast ratios.
Color Contrast Checker computes WCAG 2 contrast between foreground and background colors and reports AA/AAA pass/fail for normal and large text.
Frequently Asked Questions
Does my data leave the browser?
Processing stays in your browser. Nothing is uploaded to ToolWorld servers.
What is large text?
WCAG large text is roughly 18pt+ or 14pt bold.
Alpha supported?
Opaque colors only for ratio math.