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对比度检查
按 WCAG AA 和 AAA 的阈值检查两种颜色的对比度。
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How to use it
1Step 1Open the page and it calculates instantly
2Step 2Change a value and it recalculates live
3Step 3Copy the result wherever you need it
If the result looks off
Nothing changed
Reload the page to recalculate.
I want to save the result
Use the copy button to take the result with you.
常见问题
What is the difference between AA and AAA?
AA needs 4.5:1 for body text and AAA needs 7:1. Public-sector work usually requires AA or better.