---
title: RGB to HEX Converter: Free Online Tool | Relic
description: Free RGB to HEX converter. Turn RGB values into a HEX color code or decode HEX back to RGB, with a live swatch, all in your browser.
canonical: https://relic.space/tools/rgb-to-hex
source: https://relic.space/llms.txt
---
# RGB to HEX Converter

Move between RGB values and a HEX color code, both ways, with a live swatch. Free and private, right in your browser.

Runs entirely in your browser. Nothing you type is uploaded.

#B5832A

R (0 to 255)

G (0 to 255)

B (0 to 255)

HEX

CSS rgb()

rgb(181, 131, 42)

## RGB and HEX are the same color, written two ways

RGB describes a color as three numbers from 0 to 255, one each for red, green, and blue light. HEX writes those same three numbers in base 16 and bolts them together behind a hash, so `rgb(181, 131, 42)` and `#b5832a` are the exact same shade. This **RGB to HEX converter** keeps both sides linked: nudge a slider or type a hex code and the other format, plus the live swatch, updates with it. Everything runs in your browser, so nothing is uploaded.

## Keep the color you just dialed in

The brand hex you finally got right is the kind of value you copy once and need on every screen after. **Relic** is an encrypted, permanent memory for everything you copy, so that color, that palette, and that one gradient stay searchable on every device, forever, end-to-end encrypted so only you can read them. The converter is free. Never re-picking the same color twice is the upgrade.

## Frequently asked questions

How do I convert RGB to hex?+

Type your red, green, and blue values (each from 0 to 255) and the hex code updates instantly, with a live swatch. It works both ways too: paste a hex code and the R, G, and B values fill in for you.

How does RGB map to a hex code?+

A hex color is just the three RGB numbers written in base 16 and joined behind a hash. Each channel becomes two hex digits, so rgb(181, 131, 42) is b5, 83, 2a stuck together as #b5832a. Same color, two notations.

Can I convert hex back to RGB?+

Yes. Paste a hex code into the HEX field and the R, G, and B sliders and numbers snap to match. Both 3-digit shorthand like #fff and full 6-digit codes like #b5832a are accepted.

Why is my hex code showing an error?+

A hex color needs exactly 3 or 6 hexadecimal digits (0 to 9 and a to f), optionally with a leading hash, like #b5832a. Anything with other characters or the wrong length is flagged so you can fix it.

Is anything uploaded when I convert a color?+

No. The conversion runs entirely in your browser, so the colors you enter never leave your device.

You just copied that. What if you never lost it?

**Relic** remembers everything you copy, forever, searchable on every device, and  end-to-end encrypted so only you can read it.

 250 MB free

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