Design
Color Contrast Checker
Privacy Verified
Calculate contrast ratios between foreground and background colors to ensure accessibility compliance (WCAG AA/AAA).
Large Heading Text
Normal body text. The quick brown fox jumps over the lazy dog.
Contrast Ratio
4.51
WCAG AA (Normal Text)
PASS
WCAG AA (Large Text)
PASS
WCAG AAA (Normal Text)
FAIL
WCAG AAA (Large Text)
PASS
Privacy & Security
Colors calculated locally.
Data: None
Client-side-Side
Active
v1.0
About This Tool
This tool runs entirely in your browser. No data is sent to any server, ensuring complete privacy. Simply use the interface above to get started — no registration or login required.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.