Python (re)

HTML5 Color Input Value in PY

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

Try it in the PY tester →

Pattern

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

Python (re) code

pyPython
import re

pattern = re.compile(r"^#[0-9a-fA-F]{6}$")
input_text = "#ff5733"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

How the pattern 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

—

Same pattern, other engines

JavaScript / ECMAScript

Supported

See how this pattern looks (and behaves) in JavaScript's built-in RegExp.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to HTML5 Color Input Value overview (all engines)