Launched January 7, 2025
Color Contrast Checker
Design with Clarity—Check Contrast Instantly!
Free351 impressions#251 of its week
Check color contrast for accessibility in seconds. Instantly see if your color choices meet WCAG AA & AAA standards.
A free online tool that checks color contrast against WCAG AA and AAA standards for digital accessibility.
- for
- Designers and developers needing to ensure accessible color choices
- pricing
- free
Key features
6 features of Color Contrast Checker
- Instant contrast calculation — Computes contrast ratio for foreground and background colors in HEX, RGB, or HSL formats.
- WCAG compliance check — Shows whether the color pair meets AA and AAA criteria for normal and large text.
- Visual preview — Displays sample text with the selected colors and sizes to see readability.
- Polarity guidance — Indicates readability impact of light-on-dark vs dark-on-light modes.
- Multiple contrast types — Shows Weber and Michelson contrast metrics for broader analysis.
- Ad-free interface — Provides an uninterrupted experience without advertisements.
Use cases
- Validate button colors for web UI compliance
- Check heading contrast for blog articles
- Ensure mobile app theme meets accessibility standards
Color Contrast Checker FAQ
What contrast ratio is required for normal text?+
WCAG requires at least a 4.5:1 ratio for normal-sized text (14 pt).
What ratio is needed for large text?+
A minimum of 3:1 contrast is sufficient for large text (18 pt or 14 pt bold).
Does the tool support dark mode?+
Yes, it explains positive (dark text on light) and negative (light text on dark) polarity effects.
Can I input colors in different formats?+
Colors can be entered as HEX, RGB, or HSL values.
Is the tool legally compliant?+
It checks against WCAG AA/AAA standards but cannot guarantee full legal compliance in every case.
Summarized by DevHunt from color-contrast-checker.com · Oct 1, 2026. Details may change; check the official site.
