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Regex for RGB Color

Regex Pattern

^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$

CSS RGB color function rgb(r, g, b)

Quick Answer

The regex pattern for rgb color is `^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$`. CSS RGB color function rgb(r, g, b). This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

InputResult
rgb(255, 0, 0)✓ Matches
rgb(0,0,0)✓ Matches
rgb( 128 , 128 , 128 )✓ Matches
rgb(256, 0, 0)✗ No match
rgba(0,0,0,1)✗ No match
#FF0000✗ No match

Code Examples

javascript

const regex = /^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/;
const isValid = regex.test(value);

python

import re
pattern = r'^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/', $value)) {
    echo "valid";
}

java

String pattern = "^rgb\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})\\s*\\)$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

Related Regex Patterns

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