Hex to CSS Color Name
Convert a hex color like #FF0000 into its standard CSS named color, such as red — matched exactly against the 147 CSS Color Module names, never guessed.
How Hex to CSS Color Name Conversion Works
The CSS Color Module spec defines roughly 147 standard named colors, from common ones like red and blue to more obscure entries like cornflowerblue and rebeccapurple. This tool checks your hex code against that exact list and returns the matching name only when the hex value is an exact match — it never guesses the nearest name, since an approximate name would misrepresent the actual color.
Hex to CSS Color Name Example, Step by Step
#FF0000 = red
#FF0000 (hex) = red (CSS color name)
Hex input: #FF0000 Look up against the 147 CSS Color Module names Exact match found: red
| Step | Description | Result |
|---|---|---|
| Take the hex code | #FF0000 | #FF0000 |
| Normalize the format | uppercase, 6-digit form | FF0000 |
| Check against 147 CSS names | look for an exact match | match found |
| Return the name | no approximation | red |
If no CSS name matches exactly — as with most arbitrary brand colors — the tool tells you there's no exact match rather than returning a misleading nearest guess.
Common Mistakes With Hex to CSS Color Name
- Expecting every hex color to have a CSS name — only the ~147 standard names have one, and most hex values don't match any of them.
- Assuming a returned name is an approximation — this tool only returns exact matches, never a closest guess.
- Confusing CSS named colors with a design system's custom color tokens, which aren't part of the CSS spec.
Frequently Asked Questions
What CSS named colors does this tool recognize?
The CSS Color Module spec defines about 147 standard named colors — things like red, cornflowerblue, and rebeccapurple. This tool checks your hex code against that exact list.
What happens if my hex color has no named match?
You'll get a clear message explaining there's no exact CSS named-color match for that hex value. The tool does not guess the nearest name, since an approximate name would misrepresent the actual color.
Why doesn't this tool find the closest named color instead?
A 'closest' name is a judgment call that varies by algorithm and can be visually misleading — this tool only returns a name when the hex value matches a standard CSS color exactly.
What's the CSS name for #FF0000?
red — one of the original CSS Level 1 named colors and an exact match for #FF0000.
Are CSS named colors case-sensitive?
No — CSS color keywords like red, Red, and RED are all treated identically by browsers, and this tool matches them the same way.