Web

HTML5 Color Input Value

Validate the value of an HTML5 `<input type="color">` — exactly 6 hex digits with leading hash.

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
^#[0-9a-fA-F]{6}$

Raw source: ^#[0-9a-fA-F]{6}$

How it works

^# requires the leading hash. [0-9a-fA-F]{6} requires exactly 6 hexadecimal digits. $ anchors the end. Note this is STRICTER than the general hex-color pattern: the HTML5 color input only accepts the 6-digit form, not the 3-digit shorthand.

Examples

Input

#ff5733

Matches

  • #ff5733

Input

#0F0F0F

Matches

  • #0F0F0F

Input

#fff

No match

—

Common use cases

  • •Form validation before submitting a color value to a backend
  • •Storing color picker output safely
  • •Migrating from looser to stricter color formats
  • •Round-tripping HTML5 input values in design tools
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