Hex to RGB Converter
Type a colour like #1e90ff and you get RGB, HEX and HSL values, a colour sample and a contrast check for text.
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The formula
HEX #RRGGBB: each pair is a base-16 number from 00 to FF, which is 0 to 255 in RGB. Example: 1E = 30, 90 = 144, FF = 255.
How HEX relates to RGB
A web colour such as #1E90FF is three bytes written in hexadecimal: 1E for red, 90 for green and FF for blue. In decimal those are 30, 144 and 255, so the same colour is rgb(30, 144, 255). The short form #FFF means #FFFFFF.
HSL
HSL describes a colour as hue (the position on the colour wheel, 0 to 360), saturation and lightness. It is easier to think in when you want a slightly lighter or duller version of a colour.
Contrast and accessibility
For readable text, the Web Content Accessibility Guidelines (WCAG) ask for a contrast ratio of at least 4.5 to 1 for normal text and 3 to 1 for large text. We show the ratio of your colour against white and against black, so you can see which text colour works on it.
Examples
| HEX | RGB |
|---|---|
| #FF0000 | 255, 0, 0 (red) |
| #00FF00 | 0, 255, 0 (green) |
| #0000FF | 0, 0, 255 (blue) |
| #808080 | 128, 128, 128 (grey) |
| #FFA500 | 255, 165, 0 (orange) |
Examples to check
Type these into the calculator above to see how it behaves. Every result below was produced by the same calculator code that runs on this page.
| What you enter | What you get |
|---|---|
| Hex or RGB colour: #1e90ff | RGB: rgb(30, 144, 255) |
| Hex or RGB colour: #ff6600 | RGB: rgb(255, 102, 0) |
| Hex or RGB colour: rgb(34, 139, 34) | RGB: rgb(34, 139, 34) |
| Hex or RGB colour: #fff | RGB: rgb(255, 255, 255) |
Hex to RGB Converter: frequently asked questions
Can I convert RGB to HEX?
Yes. Type it as rgb(30, 144, 255) and the HEX value is shown.
Does it accept 3-digit HEX?
Yes, such as #0af, which is expanded to #00aaff.
Does the conversion happen on my device?
Yes. Your text, colours and files are processed in your browser and never uploaded.
Is what I enter in this converter saved or sent anywhere?
No. The calculation runs in your browser, so what you enter is not sent to our servers. We only count, anonymously, whether a tool ran successfully.
Is this converter free to use?
Yes. It is free, needs no sign-up and has no usage limit.
Last reviewed: October 3, 2026