Color Converter | How to use and interpret results
Synchronize a HEX colour with its three RGB channels and an on-screen swatch. This helps transfer a basic sRGB colour between a design note and a CSS declaration.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Loading the tool. If it does not appear, reload this page.
How to use this tool
Enter a three- or six-digit HEX value, or supply R, G and B from 0 through 255. Eight-digit values include alpha, which this three-channel form does not represent.
Results and examples
#f00 expands to #ff0000 and RGB 255, 0, 0. The swatch is the browser's rendering and should not replace a physical print proof.
Worked example
#f00 expands to #ff0000 and RGB 255, 0, 0. The swatch is the browser's rendering and should not replace a physical print proof.
Limitations
- Alpha, CMYK and ICC-profile conversion are not supported.
- Invalid HEX text may leave the previous valid colour visible.
Fields
| Field | Guidance and constraints |
|---|---|
| HEX | Check the unit and format displayed beside this field. |
| R | Check the unit and format displayed beside this field. |
| G | Check the unit and format displayed beside this field. |
| B | Check the unit and format displayed beside this field. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Which RGB channels correspond to #f00?
#f00 expands to #ff0000 and RGB 255, 0, 0. The swatch is the browser's rendering and should not replace a physical print proof.
Can this perform print colour management?
Alpha, CMYK and ICC-profile conversion are not supported. Invalid HEX text may leave the previous valid colour visible.
