About 颜色对比度检查器
检查WCAG无障碍颜色对比度
Use this free online 颜色工具 tool to work faster without installing extra software. The interface is built for quick input, clear output, and straightforward results on desktop and mobile devices.
检查WCAG无障碍颜色对比度
Sample Text
The quick brown fox jumps over the lazy dog.
Small text example for checking readability.
Contrast Ratio
21.00:1
Excellent (AAA)
WCAG 2.1 Compliance
Normal Text (AA)
Minimum 4.5:1
Large Text (AA)
Minimum 3:1 (18pt+ or 14pt bold)
Normal Text (AAA)
Minimum 7:1
Large Text (AAA)
Minimum 4.5:1
Luminance Values
检查WCAG无障碍颜色对比度
Use this free online 颜色工具 tool to work faster without installing extra software. The interface is built for quick input, clear output, and straightforward results on desktop and mobile devices.
This tool runs in your browser whenever possible, which keeps your inputs private and reduces unnecessary round-trips to the server.