Color to Name: Find the Closest CSS and ISCC-NBS Matches
Color to Name compares an entered color with two naming systems: the 148 CSS named colors and ISCC-NBS color centroids. It identifies the nearest match in each system, using OKLab for the CSS comparison, and reports a distance for both results so you can judge how close each name is. Use the matches to communicate or document color choices.
Color to Name is a browser-based color naming tool that finds the nearest CSS color name and ISCC-NBS match for an entered color. It returns two results rather than forcing one naming system: a closest match among 148 CSS named colors and a closest ISCC-NBS centroid. Each result includes a distance so you can judge how closely the name represents your color.
For the CSS result, the tool compares colors in OKLab and selects the nearest named color. For the ISCC-NBS result, it finds the nearest centroid in that color-naming system. You can adjust the available options before reviewing the results, although their specific effects are not listed here. The distance values provide useful context when a color falls between named matches.
CSS named colors and ISCC-NBS names serve different color-reference needs. A CSS name is useful when you want to describe a color using one of the 148 names in the CSS set; ISCC-NBS provides a standard naming system used in biology and design. Comparing both results can help you communicate, review, or document a color using the naming convention that fits your work.
Color to Name runs entirely in your browser. Your input is processed on your device and is not uploaded, stored, or sent to a server. Once the page has loaded, the tool works offline, so you can use it without an active connection.
The tool is useful for developers, designers, and anyone who needs a clear name for a color. It also helps DevOps engineers and other technical teams check or document color values without installing software locally. Use the two matches and their distances to make color references easier to compare and share.
Step 1: Enter or paste a color into the tool. The tool compares your input with the CSS and ISCC-NBS color references.
Step 2: Adjust the available options if needed. The tool includes options to adjust, though their specific effects are not described here.
Step 3: Review both named matches and their distances. The distance helps you assess how closely each name matches your input color.
Step 4: Copy the result for your notes or project. Keep the CSS and ISCC-NBS matches together when you need to compare the two naming systems.
Use case: Find a named color for a design value without installing a local tool. The two results make it easy to compare a CSS name with an ISCC-NBS name.
Use case: Check a color on whichever machine you are using. The browser-based tool avoids the need to set up software locally.
Use case: Avoid sending an internal color value to a third-party service. Color to Name processes the input in your browser.
Use case: Document color choices with a named match and its distance. This gives teammates more context than a name alone.
Use case: Compare a CSS color name with a color label from the ISCC-NBS system. This can help when working across design and biology contexts.
Use case: Use the closest CSS named color when you need to refer to a color by a CSS name. The tool checks against 148 CSS named colors using OKLab.
Use case: Check how closely a color aligns with an ISCC-NBS centroid. The reported distance helps show whether the match is close or less exact.