Guide
How to Check Text Contrast for Accessibility
Use a simple repeatable method to test text contrast against WCAG targets.
Accessible text contrast is one of the fastest wins in UI quality. You do not need a complex audit to start. A short, repeatable check catches most common issues.
Identify text types first
List body text, helper text, button labels, and links.
Smaller text needs stronger contrast than large headings.
Test each pair with a checker
Enter foreground and background colors and read both ratio and WCAG results.
Document combinations that fail so fixes stay organized.
Fix by changing lightness first
Try lightness adjustments before replacing the full hue.
This usually preserves your visual identity while improving readability.
Retest interactive states
Validate default, hover, focus, active, and disabled states.
Accessibility failures often hide in non-default states.
Where to apply this
- Landing page updates.
- Product UI reviews.
- Design handoff QA.
Make contrast part of QA
Treat contrast checks as a standard release step, just like spelling or layout checks.