Color Name Finder for the Closest Match to a HEX Code
Enter a HEX code or choose a color to see the nearest listed name with RGB and HSL values in the result pane.
Input
Matches come from a 156-entry list and are labeled CSS Standard or Extended.
Result
- HEX
- #3498DB
- RGB
- HSL
ready to use.
- Visible firstKeep the input and result positions clear.
- Results firstPut the main number up front and keep the process secondary.
- Less to askNo sign-up or extra information before using the tool.
How to read CSS Standard and Extended results from a Color Name Finder
The Color Name Finder compares a HEX code with this tool’s 156 listed entries and returns the closest one. The built-in set has 130 values labeled CSS Standard and 26 Extended aliases.
Names remain in English. A CSS Standard result can be used as a stylesheet keyword, while an Extended result is only a reference label and should travel with its HEX value.
Nearest names come from color distance.
The finder measures √(2ΔR² + 4ΔG² + 3ΔB²) between the input and each RGB candidate, then returns the smallest value. This is not perceptual ΔE in a uniform color space.
- Red, green, and blue differences are considered together.
- A close match is not a claim of visual identity.
- Use the candidate chips to inspect nearby values.
HEX stores light levels in six digits.
Each pair in a HEX value records red, green, then blue from 00 through FF. In #3498DB, 34, 98, and DB are the three channel levels.
- Keep the # when pasting into CSS.
- 00 means no light in that channel.
- FF means the channel is at full intensity.
RGB and HSL describe one color differently.
RGB expresses the three lights used by a screen, while HSL organizes the same result by wheel position, saturation, and lightness.
- RGB is useful beside pixel values.
- HSL makes tonal adjustments easier to reason about.
- Both notations can point to the same rendered color.
Hue and lightness reveal adjustment direction.
Hue is an angle around the color wheel, and lightness places a color between black and white. Lower saturation leaves the hue but moves the result toward gray.
- Hue near 0 degrees belongs to red families.
- Lightness at 50% sits between the extremes.
- Reducing saturation does not necessarily change brightness.
CSS Standard and Extended labels are different.
This tool’s built-in list has 130 values labeled CSS Standard and 26 Extended aliases. Only the CSS Standard labels are browser color keywords; Extended labels belong to this tool’s reference set.
- Use only labels marked CSS Standard as CSS keywords.
- Keep an Extended result together with its HEX value.
- A name is not an official color specification or quality rating.
Similar chips make comparison practical.
Instead of committing to the first result, compare chip swatches and HEX values. A neighboring candidate may feel more suitable once it sits beside the intended background.
- Select a chip to load that value.
- Compare lightness between adjacent candidates.
- Copy the final value into the work record.
History remains in this browser.
Viewed colors are kept in this device’s browser storage so they can be reopened later. Clear the list after a shared-device session.
Accessible contrast depends on the pair.
A name such as Blue or Gray cannot prove that text is readable. Test the actual foreground and background values with a separate contrast checker.
Small format slips cause common mistakes.
Three-digit HEX is shorthand that doubles each digit, while a missing # can be misread as ordinary text in CSS. Review the expanded six-digit value after pasting.
A color-name result has clear limits.
The result is only the closest entry in this tool’s fixed 156-name list, not a universal or certified color name. Another list or distance method may return a different name; use the actual specification and separate checks for print, brand approval, and accessibility.
FAQ
How is the nearest color chosen?
The tool measures √(2ΔR² + 4ΔG² + 3ΔB²) and selects the smallest distance among 156 entries.
What happens when there is no exact name?
When the input is not in the list, the closest name and the input color’s HEX, RGB, and HSL values are still shown.
Are all results CSS standard color names?
No. This tool lists 130 values labeled CSS Standard and 26 Extended aliases. Only the CSS Standard names are CSS color keywords.
Can I enter a three-digit HEX value?
Yes. A value such as #ABC is expanded by repeating each digit and becomes #AABBCC.
Where are recent colors stored?
Recent entries live only in this browser’s localStorage and can be removed with Clear.
What do the similar-color chips mean?
They show the ten closest entries under the same weighted RGB distance. They do not guarantee perceptual similarity or suitability.
Can a color name prove accessible contrast?
No. Check the actual contrast ratio between text and its background separately.
Should I use the result name for print or brand approval?
No. It is an approximation from a fixed list; follow the official brand specification or a calibrated print workflow.