Color Converter (HEX, RGB, HSL, CSS)

Translate colors between developer and designer notation. Includes built-in validation and quick copy buttons for every format.

Switch between HEX, RGB, HSL, and CSS variables instantly.

The definitive translation tool for frontend developers and UI/UX designers. Instantly bridge the gap between Figma mockups and CSS stylesheets by dropping any raw HEX, RGB, or HSL value into the engine. Automatically generate perfectly formatted, WCAG-contrast-checked CSS Variable snippets ready to drop straight into Tailwind or your design system—no heavy software required.

How this page is maintained

  • Steps and copy are checked against the current tool behavior.
  • Browser limits, file-size constraints, or compatibility gaps are documented when relevant.
  • Unless a page explicitly says otherwise, files and text stay in the browser during processing.

Bridging the Designer-Developer Handoff

In modern web development, color formats frequently become a frustrating bottleneck. A designer working in Figma might specify a brand color in intuitive HSL (Hue, Saturation, Lightness) because it makes building hover-states easier. But the engineering team might strict require rigid HEX codes for legacy database storage, or RGB values to pass through an opacity scaler in JavaScript.

This tool provides instantaneous, bi-directional translation for:

  • HEX: The terse, 6-digit standard preferred in raw CSS architectures (e.g., #FF5733).
  • RGB / RGBA: The screen-native array format essential for programmatic canvas manipulation and dynamic opacity handling.
  • HSL / HSLA: The human-readable format that makes calculating "10% darker" or "complementary" colors a mental breeze.

Embedded Accessibility (WCAG) Checks

Selecting a beautiful color is useless if your users can't read the text. As you paste your values, the interface renders a massive live swatch layered with pure white and solid black typography. This provides immediate, visceral feedback on contrast ratios, helping you catch severe accessibility (WCAG) failures before they ever reach a pull request.

Key features

  • Multi-format support: Type or paste a hex code, RGB string, or HSL value to instantly view all equivalent formats.
  • Contrast-friendly preview: A live swatch with light/dark text overlays helps you see whether your color remains legible on branded surfaces.
  • Copy-ready tokens: Grab hex, RGB, HSL, or CSS variable snippets without extra formatting or manual editing.

Frequently asked questions

Which color formats can I paste?

HEX (#fff or #ffffff), RGB (rgb(255, 255, 255)), and HSL (hsl(0, 0%, 100%)) are all supported. The converter normalizes each input automatically.

Does it support alpha channels?

Yes. Provide formats like #RRGGBBAA or rgba()/hsla() values to keep transparency. Outputs will reflect the same alpha.

What is the difference between RGB and CMYK?

RGB is for screens (light-based), while CMYK is for print (ink-based). This tool focuses on web formats (RGB/HSL/HEX). Colors may look duller when printed.

How do I check for accessibility?

The "Contrast Preview" box shows white and black text over your color. If you can't read the text easily, your color might fail WCAG accessibility standards.

Can I reuse colors as CSS variables?

Yes. The converter generates a ready-to-paste custom property snippet (e.g., --brand-color: 34 197 94) so you can drop it into Tailwind or native CSS.

Related guides

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