How to Find the Name of Any HEX Color in Your Browser

To find the name of a HEX color, paste it into the Color Name Finder and it returns the nearest of the 140+ standard CSS named colors, measured by Euclidean distance in RGB space, along with a swatch comparison and how close the match is. If your color lands exactly on a named color, the tool flags it as an exact match; otherwise you get the closest recognized name plus its HEX.

This tutorial covers entering a color, reading the result, and understanding the closeness score — all computed locally against a built-in color table, so nothing is uploaded.

What the finder does under the hood

Every CSS named color — from aliceblue to yellowgreen — has fixed red, green and blue values. The finder treats your input as a point in that 3D RGB space and measures the straight-line distance to each named color. The name with the smallest distance wins. That approach means you always get a sensible, human-readable name even for a color that isn't officially named.

Step-by-step: name a color

1. Enter your color. Type or paste a HEX code like #ff6347, or switch to RGB and enter the R, G and B values.
2. Let it search. The finder scans all 140+ CSS named colors for the nearest one instantly.
3. Compare the swatches. Your original color sits next to the named color's swatch so you can judge the match with your own eyes.
4. Read name, HEX and closeness. Note the name (for example, tomato), its HEX, and the distance value — then copy whatever you need.

Reading the closeness value

Distance	What it means
0	Exact match — your color is a named CSS color
Small	Nearly identical; the name is a safe label
Larger	Only the closest available approximation

The swatch comparison is your final sanity check. For very saturated colors, RGB distance can occasionally feel slightly off perceptually, so trust your eyes alongside the number.

Why in-browser and private matters

The entire lookup runs against a color table bundled with the page, in JavaScript, on your device. There is no upload, no account, and it works offline once loaded — so you can name colors on a plane or behind a strict firewall just as easily.

Try the Color Name Finder — free and 100% in your browser.

FAQ

Can I enter RGB instead of HEX?

Yes. Switch to RGB input and type the red, green and blue values; the finder searches the same named-color set and returns the nearest match.

What does an exact match mean?

It means your input color's RGB values are identical to a named CSS color, so you can use the keyword directly in your stylesheet with zero visual difference.

Why do gray and grey both appear?

CSS includes several synonym keywords like gray/grey and aqua/cyan. The tool searches the full set, so you may see either spelling depending on which is nearest and how ties resolve.

Is the nearest name always the perfect name?

Usually, but Euclidean RGB distance is a simple metric that doesn't perfectly match human perception. For most colors it is intuitive; the side-by-side swatches let you confirm.

Related free tools

• Color Picker — sample a color to name it.
• HEX to RGB Converter — convert before searching.
• RGB to HEX Converter — go the other direction.
• Color Palette Generator — build a palette from named colors.

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