ColorFlowTools

Color Name Finder

Find the closest named color for any value you enter. Paste a HEX or RGB color and the finder returns the nearest CSS color name, its reference HEX, RGB, and HSL values, and a color-difference score that tells you how close the match is. It also lists five similar named colors and suggests a small coordinated palette so you can go from “what is this color called?” to a usable scheme. The names come from the standard CSS color keyword list, an open web standard, not a proprietary database, and the tool is careful to present the closest match as an approximation rather than an official or unique name. Everything runs in your browser.

Similar colors

Suggested palette

Names use the standard CSS color keyword list. The closest match is an approximation, not an official or unique name.

How to use the Color Name Finder

  1. Enter a color. Paste a HEX or RGB value, or type a CSS color name.
  2. See the closest name. Read the nearest CSS color name with its reference values and a difference score.
  3. Explore similar colors. Browse five similar names and a suggested palette, and copy any value.

Examples

  • Naming a shade: Enter #6a5acd to find that it is closest to “slateblue”.
  • Almost-red: Enter #fe0102 to see that the closest name is “red”, with a small difference score.

How it works

The finder measures the distance between your color and each named color using a red-mean-weighted RGB distance, which approximates human perception better than plain RGB distance. The smallest distance is the closest name. Because naming is approximate and depends on the dataset, the tool reports a difference score instead of claiming an exact label.

Common use cases

  • Describing a color in a spec, ticket, or design note
  • Finding a familiar name for an unfamiliar HEX code
  • Starting a palette from a named reference color

Privacy

All color calculations run in your browser. Nothing you enter is sent to a server. Saved palettes and recent colors are kept only in your browser’s local storage and can be cleared at any time.

Frequently asked questions

Where do the color names come from?

From the standard CSS/SVG color keyword list, an open web standard. It is not a proprietary or marketing color database.

Is the closest name official?

No. It is the nearest match in a standard list. Color naming is approximate and depends on the dataset used.

What does the difference score mean?

It measures how far your color is from the named reference. A small score means a very close match; a larger score means the name is only approximate.

Can I get similar colors?

Yes. The finder lists five similar named colors and suggests a small palette you can copy or refine.

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