Convertisseur de couleur — Outil en ligne gratuit
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By the AllFileBox Team · Last updated: 2026-06-11
#5B4FE8
rgb(91, 79, 232)
hsl(245, 77%, 61%)
Color Converter is a free online tool that converts a color between HEX, RGB, and HSL formats instantly, so you can copy the exact code you need for CSS, design, or print.
HEX, RGB, and HSL explained
HEX is the six-digit code used in CSS and design tools. RGB describes a color by its red, green, and blue channels. HSL uses hue, saturation, and lightness, which makes it easy to adjust a color by feel. Converting between them lets you work in whichever format a tool expects.
Convert in any direction
Enter a value in one format and the converter returns the matching codes in the others, with a live swatch so you can confirm the color. It handles HSL to HEX, HEX to HSL, RGB to HEX, and HEX to RGB without any rounding surprises.
Comment l'utiliser Convertisseur de couleur
- Open Color Converter in your browser.
- Type or paste a color in HEX, RGB, or HSL.
- Read the converted values in the other formats.
- Check the live color swatch to confirm.
- Copy the code you need.
Match a brand color
Match a brand color
Paste a HEX code from a style guide and read off the RGB and HSL values for other tools.
Tune a shade in HSL
Adjust lightness in HSL, then convert to HEX for your stylesheet.
Fill a design token
Convert RGB to HEX to populate a design system color variable quickly.
| Format | Example | Common use |
|---|---|---|
| HEX | #0277BD | CSS, design tools |
| RGB | rgb(2,119,189) | Screens, canvas |
| HSL | hsl(201,98%,37%) | Adjusting shades |
Outils liés
Caractéristiques clés Convertisseur de couleur
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