RGB to HEX

Where RGB values come from

Values read from a screenshot or an app's color picker are not always the color a designer specified. Screens and screenshots can carry a wide-gamut profile such as Display P3, and a picker may report those numbers rather than sRGB ones, so the same button can read a few units off in each channel. Take the value from the source file or style sheet where you can, or from the original image with the image color picker. Percentages convert by multiplying by 2.55: rgb(40%, 77%, 18%) is roughly 102, 196, 46.

Short codes and letter case

The result is always six uppercase digits. Case makes no difference to browsers, but matching a style guide's case keeps search and replace reliable. A code can be shortened to three digits only when each pair repeats a digit: #AABBCC becomes #ABC, while #63C42D has no short form. Fractional channel values are rounded, so two slightly different inputs can give the same code; to check the reverse, use HEX to RGB.

How to use it

1. Enter RGB values from 0 to 255.
2. Review the live HEX result.
3. Copy the color.

Privacy & limitations

Conversion stays in the browser.