RGB Color Validator
Paste an RGB/RGBA color to check whether it is valid — complete with the reason if it is invalid and a component breakdown if it is valid. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
rgb(30, 144, 255)
Example Output
✓ VALID — 3 components, no alpha
How to Use
- 1Paste the an RGB/RGBA color you want to check into the input box.
- 2If the tool offers extra options (e.g. dialect, flags, or variant), set them as needed.
- 3Click Validate (or press Ctrl+Enter).
- 4Read the result badge — VALID, INVALID, or VALID with a warning — along with the details and the list of issues, if any.
About RGB Color Validator
RGB Color Validator checks the rgb() and rgba() color functions: three red/green/blue components (0–255 or percentages) plus an optional alpha (0–1 or percentage). It accepts both comma and space separators per modern CSS syntax.
The tool flags any component outside its range so out-of-bounds values are easy to spot.
FAQ
Is my data sent to a server?
No. All validation runs in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.
How is this validator different from a parser or formatter?
A validator answers one question: is this input correct/valid? It returns a valid/invalid badge with the reason. A parser breaks input into its components, and a formatter tidies its layout. Use a validator when you just need to confirm something is sound before using it.