What range do the RGB values use?

Each channel (red, green, blue) runs from 0 to 255. Values outside that range are clamped automatically.

How is RGB converted to hex?

Each channel is converted from decimal to a two-digit base-16 number and the three pairs are joined. For example rgb(59, 130, 246) becomes

Does this send my colours to a server?

No. The whole conversion runs locally in your browser — nothing is uploaded.

RGB to Hex Converter

Convert RGB channel values into a hex colour code.

RGB to hex converter

Enter red, green and blue values from 0–255 and get the matching hex colour code straight away, with a live swatch you can copy into CSS, SVG, or any design tool.

Each channel is converted to a two-digit hexadecimal pair, so rgb(59, 130, 246) becomes #3b82f6. It all runs in your browser — nothing is uploaded.