Converter Portal
Color Tools

RGB to HEX Converter

Convert RGB color values to a hex color code with a live preview.

RGB is how screens and image editors describe color — three channels from 0 to 255 — but the web, design handoffs and brand guides speak hex. Turning rgb(51, 102, 204) into #3366cc means converting each channel to two base-16 digits, which is exactly the kind of arithmetic a tool should own.

Enter red, green and blue values (or drag the sliders) and get the hex code instantly, with a live swatch so you can confirm the color before copying. It's the reverse of the hex-to-RGB workflow and just as handy when you're picking colors numerically.

How to use RGB to HEX Converter

  1. 1

    Set the RGB values

    Type each 0–255 channel or drag the sliders.

  2. 2

    Read the hex code

    The equivalent #RRGGBB updates live.

  3. 3

    Copy the hex

    Paste it into CSS, design tools or brand docs.

Features

  • Sliders and numeric inputs for each channel
  • Live color preview
  • Clamps out-of-range values safely

Frequently asked questions

Common mistakes to avoid

  • Entering RGB as percentages (0–100) instead of 0–255.
  • Expecting an alpha channel — hex #RRGGBB has no transparency; use 8-digit hex or rgba() for that.
Written by Converter Portal Editorial TeamPublished July 23, 2026Last updated July 23, 2026

Get new tools in your inbox

One email a month with new tools, guides, and updates. No spam, unsubscribe anytime.