CSS Color Converter
Convert colors between HEX, RGB, HSL, HSV, and named colors. Generate color schemes and preview colors with CSS examples for web development.
Color Input Settings
Examples: #33455f, rgb(51, 69, 95), hsl(215, 30%, 29%), blue
Color Preview
Color Conversion Result
CSS Usage Examples
Background
Border
Text Color
Color Schemes
Complementary
Triadic
Tetradic
Analogous
Split Complementary
Monochromatic
About CSS Color Converter
A CSS Color Converter is a comprehensive tool that transforms colors between multiple formats including HEX, RGB, HSL, HSV, and CSS named colors. This all-in-one converter is specifically designed for web development, providing instant conversions with live CSS examples and color previews to streamline your development workflow.
Why use a CSS Color Converter?
Using a CSS Color Converter eliminates the need for multiple conversion tools and manual calculations when working with different color formats in web development. It provides accurate conversions between all major color formats, shows live CSS examples, and helps ensure color consistency across different properties and stylesheets in your web projects.
Who is it for?
This tool is essential for web developers working with CSS styles, frontend developers implementing design specifications, CSS preprocessor users managing color variables, web designers converting between design tool formats, and anyone building websites who needs reliable color format conversions with CSS-ready output.
How to use the tool
Input your color in any supported format (HEX, RGB, HSL, HSV, or CSS color name)
The tool automatically converts and displays the color in all other formats
Preview the color with live CSS examples showing different use cases
Copy the color values in your preferred format directly into your CSS files
Use the CSS examples as templates for implementing the colors in your stylesheets
Frequently Asked Questions
How do I convert between CSS colour formats?
Paste any CSS colour value — HEX, RGB, HSL, HWB, named colours (e.g. `tomato`), or CSS Color 4 functions — and the tool outputs the equivalent in every supported format simultaneously. Accepts `#FF5733`, `rgb(255 87 51)`, `hsl(9deg 100% 60%)`, `hwb(9 20% 0%)`, `tomato`, and other valid CSS colour syntaxes. Click any output format to copy. Conversion runs entirely in your browser — values never leave the device.
What's the difference between HEX, RGB, HSL, and HWB?
All four describe the same sRGB colour space using different notations. HEX (`#RRGGBB`) is the most compact, used historically. RGB uses three 0-255 channels — direct hardware control. HSL uses hue (0-360°), saturation, lightness — intuitive for design (lighter/darker = adjust L). HWB uses hue, whiteness, blackness — even more intuitive for some design tasks (mix in white or black amounts). HWB is the newest, added in CSS Color 4. All conversions between these are exact and lossless.
Is the conversion exact and lossless?
Yes for HEX/RGB/HSL/HWB conversions within the sRGB colour space — they're different notations for identical data, mathematically reversible without loss. Conversion to/from CMYK is approximate (different colour space, requires ICC profile for accuracy — see the [CMYK to RGB](/tools/cmyk-to-rgb/) caveat). Named CSS colours (e.g. `tomato` = `#FF6347`) have fixed RGB equivalents defined by CSS — also exact.
Can I use all these formats in modern CSS?
Yes — modern CSS supports HEX (3-digit, 6-digit, 8-digit with alpha), `rgb()`, `rgba()`, `hsl()`, `hsla()`, `hwb()`, named colours, and the new colour spaces (`lab()`, `lch()`, `oklab()`, `oklch()`, `color()`). Browser support: HEX/RGB/HSL universal; HWB Chrome 101+, Firefox 96+, Safari 15+; LAB/LCH/OKLAB modern browsers (2022+). For wider browser support, use HEX or RGB. For modern features (relative colour syntax, wider gamuts), use the newer formats.
What CSS Color 4 features does this tool support?
The tool supports the modern CSS Color 4 syntax: space-separated arguments (`rgb(255 87 51)`, `hsl(9 100% 60%)`), the slash-separator for alpha (`rgb(255 87 51 / 0.5)`), and the HWB function. Newer features (relative colour syntax `rgb(from red r g b)`, the `lab()` / `lch()` / `oklab()` / `oklch()` colour functions, `color()` for wide-gamut colour spaces) may be in development. Check the tool's output formats for current support — CSS Color 4 is the modern standard for 2026+.
How do I handle transparency / alpha across formats?
All formats support alpha. HEX: append two hex digits for alpha (`#FF573380` = ~50% alpha). RGB: use `rgba()` or modern `rgb(... / 0.5)` slash syntax. HSL: use `hsla()` or `hsl(... / 0.5)`. HWB: `hwb(... / 0.5)`. Named colours: combine with `rgba()` (no inline alpha syntax). Alpha is 0.0-1.0 in CSS functions, 0-FF in HEX. Conversion between alpha notations is exact: 0.5 = 0x80 = 128/255.
What's the difference between HSL and HWB?
Both are intuitive alternatives to RGB. HSL parameterizes as hue + saturation + lightness — 'how vivid' and 'how bright'. HWB parameterizes as hue + whiteness + blackness — 'how much white mixed in' and 'how much black mixed in'. HWB matches how many designers think about colour mixing (start with a pure hue, add white to make it pastel, add black to make it dark). HSL is more established; HWB is newer (CSS Color 4) and gaining adoption. For programmatic shade generation, either works — pick the mental model that fits your workflow.
What about LAB, LCH, OKLAB — should I use those?
These newer CSS Color 4 colour spaces target wider gamuts and perceptual uniformity (equal numeric distances correspond to equal visual differences). OKLAB / OKLCH in particular are excellent for generating perceptually-uniform colour palettes — algorithmically-derived hue and lightness scales look more even than HSL-based scales. Browser support is broader (Chrome 111+, Firefox 113+, Safari 15.4+). Use them when you need wide-gamut display targeting (P3, Rec.2020) or perceptual uniformity. For most web design today, HSL/HEX cover the practical needs.
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