WCAG Color Contrast
Check WCAG contrast ratio between foreground and background colors and whether AA/AAA pass.
前景色 (文字)
背景色
Aa 对比度预览
| 对比度 | |
|---|---|
| 普通文本 (AA ≥ 4.5) | |
| 大号文本 (AA ≥ 3.0) | |
| 普通文本 (AAA ≥ 7.0) |
Support Us
If this tool helps you, feel free to scan the QR code to support our development.
微信
WeChat Pay 支付宝
Alipay Related Tools
Base64 Encode/Decode
Convert text and Base64 both ways with correct UTF-8 Chinese; images preview as Base64.
URL Encode/Decode
Encode/decode URLs and parameter strings, for the whole URL or a single value.
Base Converter
Convert freely among binary, octal, decimal and hexadecimal, with big integers and bit view.
Color Converter
Convert HEX, RGB and HSL with a color picker and live preview; compare light/dark.
Unicode Converter
Convert Chinese and Unicode escape sequences both ways, supporting \uXXXX and \u{XXXXX}.
Random Password Generator
Batch-generate strong passwords with custom length and charset, plus strength estimate; local only.