Overview
Pick a background color with a native color picker, or type it directly as a HEX code or an RGB value - the two stay in sync, so editing either one updates the other and the live rectangular preview. The output is always the explicit background-color property (not the background shorthand), so it never silently overrides other background settings like an image or gradient you might add separately. HEX is validated as exactly 3 or 6 hex digits and RGB as three integers from 0-255 - an invalid value is flagged with a clear message rather than being silently clamped into range. Pairs naturally with the CSS Background Image Generator when a page needs both a fallback color and an image or gradient layered on top. Runs entirely client-side.
Best for: Getting a validated background-color declaration without hand-typing and double-checking a hex code
How to use this tool
- Pick a color. Use the color picker, or type a HEX or RGB value directly.
- Stay in sync. Editing HEX updates RGB and vice versa, with the preview updating live.
- Copy the CSS. Grab the finished background-color declaration, ready to paste.
Why use this tool
HEX and RGB stay synced
Edit either format and the other updates automatically, with no manual conversion.
Clear validation
An out-of-range RGB channel or malformed HEX is flagged explicitly, never silently clamped.
Explicit property name
Always outputs background-color, never the background shorthand, so it stays predictable alongside other background rules.
Frequently asked questions
The background shorthand resets every background sub-property it doesn't mention - image, position, repeat, and so on - back to its default. Outputting background-color specifically means this declaration only ever sets the color, leaving any image or gradient you've set elsewhere untouched.
The tool tells you exactly what's wrong - a HEX value that isn't 3 or 6 hex digits, or an RGB channel outside 0-255 - rather than guessing at what you meant or clamping the value into range silently.