What it does
RGB to HEX converts red, green and blue channel values into a hexadecimal string. It is intended for moving colours from photo-editing software into HTML and CSS.
Enter a value from 0 to 255 in each of the R, G and B fields. Those fields represent the separate channel amounts used by the converter; the result gives the hexadecimal notation for the same colour.
For the opposite handoff, the page links to Hex to RGB: a route for taking a colour code from a website back into an editor that expects three channel values. It also links a separate colour-exploration tool and a small selection of named colours.
Strengths
- Red, green and blue have separately labelled input fields.
- The reverse-conversion page is linked directly.
Best for
- Moving RGB values from a photo editor into HTML or CSS.
Sources
- RGB to HEX (Oct 28, 2026)