🌓 颜色对比度检测Color Contrast Checker (WCAG)
检测文字颜色与背景色的对比度，判断是否符合 WCAG AA/AAA 无障碍标准。Check text/background color contrast against WCAG AA and AAA accessibility standards.
使用说明与常见问题How-to & FAQ
「颜色对比度检测」是什么？What is the Color Contrast Checker (WCAG)?
检测文字颜色与背景色的对比度，判断是否符合 WCAG AA/AAA 无障碍标准。Check text/background color contrast against WCAG AA and AAA accessibility standards.
如何使用「颜色对比度检测」？How do I use the Color Contrast Checker (WCAG)?
在「颜色对比度检测」中，填写「文字颜色」、「背景颜色」等参数，结果会随输入实时计算并显示在下方。In the Color Contrast Checker (WCAG): Fill in "Text color", "Background"; results are recalculated instantly as you type.
支持哪些颜色格式？Which color formats are supported?
「颜色对比度检测」支持 HEX、RGB、HSL 等常见格式，结果可直接复制到 CSS 中使用。The Color Contrast Checker (WCAG) works with HEX, RGB and HSL values that you can paste straight into CSS.
「颜色对比度检测」免费吗？需要注册吗？Is the Color Contrast Checker (WCAG) free? Do I need an account?
「颜色对比度检测」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Color Contrast Checker (WCAG) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.