Color Name Finder — Find Closest Named Color from HEX, RGB
Find the closest named color for any HEX or RGB value. Browse 140+ CSS color names with swatches. Browser-based color matcher, no upload needed.
Features
- ✓Find the closest named CSS color for any HEX or RGB value with similarity percentage
- ✓Browse a complete library of 140+ CSS named colors with visual swatches and hex codes
- ✓Search color names by keyword to quickly find the color you are looking for
- ✓Real-time color matching updates as you type or pick a color from the color picker
- ✓View top 8 nearest matches ranked by color distance for more accurate color identification
- ✓Display color preview alongside the matched named color for visual comparison
- ✓See complete color details: HEX, RGB, and HSL values for both input and matched color
- ✓Click on any named color in the gallery to instantly set it as your input color
- ✓Works entirely in the browser with no data uploaded to any server
- ✓Clean tab-based interface: Find tab for color matching, Browse tab for exploring all colors
- ✓Supports both shorthand (#FFF) and full (#FFFFFF) hex color formats
- ✓Copy any color's hex, RGB, or HSL value with a single click for use in your projects
How to Use
- 1Type a hex code (e.g., #FF5733) or RGB value (e.g., rgb(255, 87, 51)) into the input field to find the closest named color
- 2Use the native color picker by clicking the color swatch next to the input field to select a color visually
- 3Read the matched color name and its similarity percentage to see how close the match is
- 4Compare the input color preview against the matched named color swatch to verify the match visually
- 5Scroll through the nearest matches section to see alternative named colors ranked by proximity
- 6Click on any color name in the Browse tab to set it as your active color and view its details
- 7Use the search bar in the Browse tab to filter colors by name — type 'blue' to see all blue shades
- 8Copy color values (HEX, RGB, HSL) to your clipboard for use in CSS, design tools, or code
Frequently Asked Questions
How accurate is the color name matching?
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The matching uses Euclidean distance in RGB color space to find the closest named CSS color. The similarity percentage shows how close the match is on a scale of 0-100%. While RGB distance is a simple geometric measure, it provides good results for everyday color identification needs.
How many named colors are included?
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The tool includes all 148 standard CSS named colors as defined in the CSS Color Module Level 4 specification. These cover the full spectrum from basic colors like Red and Blue to more specific shades like MediumSlateBlue and PaleGoldenrod.
What input formats are supported?
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You can input colors as hex codes (#FF5733 or #F53 shorthand) or RGB values (rgb(255, 87, 51)). You can also use the built-in color picker to select a color visually, which will automatically update the input field.
Can I search for colors by name?
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Yes, switch to the Browse tab and use the search bar to filter the color library by name. For example, typing 'blue' will show all named colors containing 'Blue' in their name, from LightBlue to MidnightBlue.
Why is my color not matching exactly?
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Not all colors have a named CSS equivalent. The tool finds the closest match from 148 named colors. For exact color specification, use the HEX or RGB values directly the input color preview always shows your exact color.
How can I use the matched color name in my CSS?
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All 148 CSS named colors are valid in CSS. You can use the matched name directly in your stylesheets. The Browse tab shows the exact name and hex value for each color.
Is my color data sent to any server?
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No. Everything runs locally in your browser. The color matching algorithm and the color name database are both processed entirely on your device. No data is uploaded or shared.
What is the color distance metric used?
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The tool uses Euclidean distance in the RGB color space. The distance is calculated as the square root of the sum of squared differences between the red, green, and blue components. This is normalized to give a similarity percentage.
How do designers use this tool?
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Designers use it to quickly name colors from a brand palette for documentation, find CSS equivalents of colors used in mockups, or discover alternative shades with similar visual characteristics.
What's the difference between this and a color picker?
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A color picker lets you select a color and get its hex/RGB values. This tool goes further by telling you what that color is called in CSS, making it easier to discuss and document colors with your team.
Can I get the HSL value of a color?
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Yes, the tool displays HEX, RGB, and HSL values for both your input color and the matched named color. HSL values are useful for understanding the hue, saturation, and lightness characteristics.
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