Color Name Finder
Free online color name finder. Enter any hex color and get the nearest CSS/HTML named color with RGB values, match percentage, top 5 closest matches, and ready-to-copy CSS code. 100% client-side.
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What is Color Name Finder?
The Color Name Finder is a free online tool that takes any hex color code and returns the closest CSS/HTML named color. It compares your input against the full set of 140 standard named colors (CSS Level 1 through Level 4) using a weighted RGB distance formula that approximates human color perception. The tool shows the best match with a similarity percentage, lists the top five nearest named colors in a table with hex, RGB, and distance values, and generates ready-to-paste CSS code using either the named color or its hex value. An interactive color picker lets you sample colors visually, and manual hex input supports both 3-digit and 6-digit formats with instant validation. All processing runs entirely in your browser with no data sent anywhere, making it ideal for designers choosing semantic color names, developers looking for readable alternatives to hex codes, and anyone learning the CSS color palette.
Key Benefits
- Replace cryptic hex codes with readable, memorable CSS color names in your stylesheets
- Perceptually-weighted RGB distance so the nearest match looks right to the human eye
- Top 5 matches table gives you alternatives beyond just a single answer
- Ready-to-copy CSS snippets with both named color and hex fallback
- 100% client-side — works offline, no sign-up, and your color values never leave your device
Common Use Cases
- •Web design: choose semantic color names that are easier to read and maintain than raw hex codes
- •Accessibility audits: find the standard named color closest to a brand color for documentation
- •Learning CSS: discover the full set of named colors and how they relate to hex values
- •Design systems: map custom palette colors to the nearest standard CSS color for fallback support
- •Debugging: quickly identify a color from a screenshot or design mock by entering its hex value
How to Use the Color Name Finder
- Enter a Hex Color: Type a hex color code (e.g. #3b82f6) into the input box, or pick a color using the color picker swatch next to it.
- Use a Preset (Optional): Click any of the preset color swatches below the input to instantly load a sample color.
- Read the Nearest Match: The best-matching CSS named color appears in a result card showing the name, hex value, RGB triplet, and a match percentage.
- Compare and Copy: Browse the top 5 nearest matches in the table, then click any value (name, hex, RGB, or CSS) to copy it to your clipboard.
Key Features
- Compares your hex color against all 140 standard CSS/HTML named colors (CSS Level 1-4, X11).
- Uses a perceptually-weighted RGB distance formula so the nearest match looks correct to the human eye.
- Shows the top 5 nearest named colors in a table with hex, RGB, and color distance.
- Interactive color picker plus manual hex input with instant validation and live preview swatches.
- Generates ready-to-copy CSS snippets using the named color or its hex value.
- 100% client-side — works offline, no sign-up, and your color values never leave your device.