DocomintConvertisseur RGB vers HEX
Convertissez des valeurs RGB (0–255) en un code couleur hexadécimal à 6 chiffres.
What is a Convertisseur RGB vers HEX?
Design specs and eyedropper tools sometimes hand you three separate RGB numbers instead of a ready-to-use hex string — this converts them the other direction from HEX to RGB, turning each 0–255 channel into its 2-digit hex pair so you can paste one short code into CSS instead of three long ones.
How to use the Convertisseur RGB vers HEX
- Drag the R, G, and B sliders to the values you have (0–255 each)
- Each channel is converted to a 2-digit hex pair on your device
- Copy the resulting 6-digit hex code
Example
RGB values of 37, 99, 235 (a mid-blue) convert to 25, 63, eb in hex — assembled as #2563eb, the compact form most CSS and design tools expect.
Frequently asked questions
Can RGB values be decimals?
Standard 8-bit RGB values are always whole numbers from 0–255 — decimals only show up in the newer CSS Color 4 percentage syntax (e.g. rgb(14.5% 38.8% 92.2%)), which this tool doesn't use.
Is hex or RGB more precise?
Neither — a standard 6-digit hex code and 8-bit RGB (0–255 per channel) represent exactly the same 16.7 million colors with no precision lost converting between them. They're just two ways of writing the identical number.
Is my color values uploaded anywhere?
No — Convertisseur RGB vers HEX runs entirely in your browser using JavaScript/WebAssembly. Your color values is never sent to a server.