148 CSS ColorsDistance RankingClick to Copy

Closest Match

#3B82F6

Your color

royalblue

#4169e1

Distance

33.2

Top 10 Closest Colors

FAQ

How many CSS colors are there?
There are 148 named CSS colors recognized by all modern browsers.
How is distance calculated?
Euclidean distance in RGB color space. Lower distance means a closer visual match.
Can I click to copy?
Yes. Click any color in the list to copy its name to your clipboard.
Share:Copied!
Was this tool helpful?

Get a free API key + new tools as they ship

100 calls/day, no card, no spam. Built by one person, in public.

About Color Name

Color Name is a free, browser-based utility designed to make developer and design work as quick and frictionless as possible. The goal was to keep the path from "open the page" to "get the result" as short as possible. No mandatory account, no cookie wall, no upsell at every step. It is one of about a hundred developer tools that share the same philosophy: do one thing, do it well, get out of your way.

When you'd reach for Color Name

  • You're on a public or shared machine and don't want to leave traces of what you're working on.

    Travelers, contractors, anyone working from a friend's computer.

    Nothing is uploaded, nothing persists if you're not signed in.

  • You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

    Marketers and ops people whose primary tool is metered.

    Stay productive without burning credits.

  • You need to handle a one-off task right before a meeting and don't have time to install anything.

    Anyone working remotely on a borrowed or restricted machine.

    Open the page, get the result, paste it into your doc — under a minute.

  • You're cleaning up a folder of files that accumulated over a project and need to standardize them.

    Designers, writers, and developers wrapping up deliverables.

    Drop each file in, copy the output, move on.

Frequently asked about Color Name

Will Color Name change my original file?
Never. Color Name only reads your input file and produces a new output file.
Are my files uploaded to a server when I use Color Name?
Color Name processes everything in your browser using local APIs. Your files never leave your device.
Can I use Color Name commercially?
Yes. The output of Color Name belongs entirely to you, with no licensing restrictions.
What browsers does Color Name support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Is Color Name really free?
Yes — Color Name is free for unlimited personal use, with no account required and no watermark on the output.