CSS单位和颜色转换器

了解CSS颜色和单位

HEX、RGB和HSL颜色格式

CSS支持多种颜色格式。

<strong>RGB</strong>对每个通道使用0到255的十进制值。

<strong>HSL</strong>对设计师来说最直观。

CSS Named Colors

CSS provides 147 named colors like coral, steelblue, and rebeccapurple. While convenient for prototyping, named colors offer limited precision. Converting a CSS color name to HEX or RGB gives you exact values you can fine-tune for production use.

印刷设计的CMYK

<strong>CMYK</strong>是印刷的标准颜色模型。

设计工具中的HSV

<strong>HSV</strong>是Photoshop、Figma和Sketch的原生颜色模型。

PX vs REM: CSS单位解释

<strong>像素(PX)</strong>是绝对单位。

将像素除以16得到REM值。

<strong>EM单位</strong>相对于父元素的字体大小，而非根元素。

• 1rem = 16px (default browser setting)
• 1em = parent font-size (context-dependent)
• 0.75rem = 12px — common for small/caption text
• 1.25rem = 20px — common for subheadings
• 2rem = 32px — common for section headings

为什么使用CSS转换器？

手动转换繁琐且容易出错。

• Instant results — paste a value and get the converted output immediately, no formulas needed.
• Copy-ready output — every result includes a one-click copy button with properly formatted CSS syntax.
• Color preview — see a live swatch of the converted color to visually confirm accuracy.
• No installation — works in any browser, on any device. No extensions, downloads, or signups.
• Developer-friendly — shareable URLs with pre-filled values for easy team collaboration.

Common CSS Conversion Workflows

• Design handoff: Figma and Sketch export colors as HEX. Convert to RGB or HSL if your codebase uses those formats.
• Dark mode generation: Take your light-mode HSL palette, adjust lightness values, and convert back to HEX.
• Accessibility checks: Convert colors to RGB to calculate contrast ratios using the WCAG luminance formula.
• Legacy migration: Convert pixel-based layouts to rem-based responsive systems during refactors.
• Cross-browser debugging: Quickly convert colors to match your source code format.

Supported Conversions