Color Name Finder

Find the nearest CSS named color to any hex

Type or pick a hex color and the tool finds the closest match from the standard CSS named color set using Euclidean distance in RGB space. You see the matched name, its exact hex value, and how far the match is from your input. Click either swatch to copy the color. For an exact match the distance is zero and no approximation note is shown.

The tool covers all 148 CSS named colors from the CSS Color Level 4 specification, including the extended set such as cornflowerblue, darkorchid, and lightslategray. It is useful when you have a hex value from a design tool and want a human-readable name for documentation or code comments.

FAQ

How is the nearest color calculated? The tool computes the Euclidean distance in RGB space: sqrt((dr)^2 + (dg)^2 + (db)^2). The named color with the smallest distance is returned.

What if two colors are equally close? The first match in the internal list is returned. Ties are extremely rare in practice because most named colors are spread across the color space.