Color Contrast (a11y) Checker

Verify WCAG text accessibility compliance in real-time. Input foreground and background values to compute official contrast ratios.

Color Stop Parameters

Text / Foreground Color

Background Color

Contrast Ratio4.5 : 1

WCAG AA (Normal Text) Pass

WCAG AA (Large Text) Pass

WCAG AAA (Normal Text) Fail

WCAG AAA (Large Text) Pass

Live Workspace Preview

Large Typography Header

This represents a normal sized paragraph block of text. Dynamic layouts require typography and color stops to be accessible to visitors with various levels of visual impairments or screen configurations.

Support High Usability Standards with Accessible Web Typography

Web accessibility regulations (WCAG AA & AAA) specify target luminance ratios for layouts to ensure reading comfort for everyone. When contrast ratings are less than 4.5:1, visitors with moderate vision loss struggle to parse copy content or scan call-to-actions. Our **Color Contrast Checker** runs sRGB calculations client-side to output reliable ratio metrics instantly.