Color contrast checker for readable website UI.
Check whether website text, buttons, links, and interface states may have contrast problems that affect readability.
Color Contrast Checker
Built for Designers, marketers, ecommerce teams, and front-end developers.
Text that may be hard to read against its background
Buttons and links whose visual states may not stand out
Small text or muted copy with weak contrast
Repeated color patterns that need design-system cleanup
WCAG Color Contrast Checker
Test foreground and background colors instantly.
Enter hex colors or use the color pickers. The ratio is calculated using the WCAG relative luminance formula and tested against common AA and AAA thresholds.
Sample preview
Accessible text should be easy to read.
Use this preview to compare body copy, headings, buttons, and UI labels before shipping a design system update.
Contrast ratio
17.74:1
Turn the scan into practical accessibility work.
Automated testing is a starting point. AuditYourWeb keeps the guidance direct so owners, agencies, and developers can decide what to fix next without pretending automation is legal certification.
Run the free checkerIncrease foreground and background contrast for text and controls.
Avoid relying on color alone for links, errors, and status messages.
Review hover, focus, disabled, and selected states.
Move repeated contrast fixes into reusable tokens or CSS variables.
From one free scan to a repeatable accessibility workflow.
Use the widget for visitor color preferences and Code Scanner for source-level contrast-related patterns.
The public checker is free to use. Saved websites, widget setup, deep scans, and code issue tracking live in the dashboard when your team needs a longer workflow.
Keep checking the connected issues.
WCAG Color Contrast Checker
Test foreground and background colors with a WCAG contrast ratio calculator for normal text, large text, UI components, and AAA targets.
Open toolWCAG Checker
Run a free WCAG-oriented website scan and review machine-detectable accessibility issues with evidence, severity, and practical next steps.
Open toolKeyboard Navigation Checker
Check for interaction patterns that may create keyboard traps, weak focus visibility, or inaccessible controls.
Open toolCommon questions about color contrast checker.
Why does contrast matter for accessibility?
Good contrast helps low-vision users, older adults, mobile users in bright light, and anyone reading dense content.
Can the scanner fix contrast automatically?
It can point out likely issues and guide remediation, but your design system should decide the final accessible color tokens.