// how-to guide

How to Convert Between Color Formats

Convert colors between HEX, RGB, HSL, and other formats instantly. Paste any color value and get it in every supported format.

1

Enter a color value

Paste or type a color in any supported format such as HEX (#ff5733), RGB (rgb(255, 87, 51)), or HSL (hsl(14, 100%, 60%)).
2

View all converted formats

The tool automatically detects the input format and converts the color into all other supported formats including HEX, RGB, HSL, and CMYK.
3

Fine-tune with the color picker

Use the visual color picker to adjust the hue, saturation, and lightness if you want to tweak the color before copying.
4

Copy the format you need

Click on any output format to copy the value to your clipboard, ready to paste into your CSS, design tool, or code.

Whether you are pulling a color from a design mockup in HEX and need it as HSL for your CSS custom properties, or converting an RGB value from a JavaScript canvas into a format your design token system expects, color format conversion is a routine part of front-end work. The color converter handles these translations instantly so you can stay focused on the design itself.

Understanding color formats

Each color format exists for a reason, and choosing the right one depends on what you are doing.

HEX (#ff5733) is the most compact notation and remains the default in most design tools and legacy codebases. It is easy to copy-paste but nearly impossible to tweak by eye because the red, green, and blue channels are encoded as hexadecimal pairs.

RGB (rgb(255, 87, 51)) maps directly to how screens emit light. It is the native format for the <canvas> API and is useful when you need to manipulate individual channels programmatically, such as dynamically adjusting brightness in JavaScript.

HSL (hsl(14, 100%, 60%)) describes color in terms humans think about: hue, saturation, and lightness. This makes it the best choice for design systems where you need to generate consistent palettes. Shifting the hue by a fixed number of degrees gives you complementary or analogous colors without guesswork. Modern CSS increasingly favors HSL for custom properties because you can adjust a single axis, for example darkening a button on hover by reducing lightness, without touching the other values.

CMYK matters when your design will be printed. Screen colors do not translate one-to-one to print, so having the CMYK breakdown helps you communicate with print vendors.

Tips and best practices

Standardize on one format per project. Pick HSL for design-token-driven systems or HEX for simpler projects and stick with it to avoid confusion across your stylesheets.
Use HSL for programmatic palettes. Generating shades and tints is as simple as stepping the lightness value up or down in fixed increments.
Watch out for alpha channels. If you need transparency, make sure you are using rgba(), hsla(), or the eight-digit HEX notation (#ff573380). Not every tool or browser version handles all alpha syntaxes equally.
Test converted values visually. Rounding during conversion can shift a color by a value or two. Always confirm the output looks correct in context, especially for brand colors where precision matters.

Common issues

HEX shorthand expansion: A three-digit HEX value like #f00 expands to #ff0000, not #f00000. If your conversion looks wrong, make sure the tool is interpreting the shorthand correctly.
CSS color() and newer spaces: Formats like oklch and display-p3 cover a wider gamut than sRGB. Converting from a wide-gamut color to HEX will clamp values, potentially producing a noticeably different color. Be aware of gamut limitations when working across color spaces.
Inconsistent alpha handling: Some tools output rgba(255, 87, 51, 0.5) while others use the modern rgb(255 87 51 / 0.5) syntax. Verify which syntax your target environment supports before pasting.