regex101: PCRE (Legacy) Match Workspace

^start of line

Group 1( \#[\da-f]{3} |\#[\da-f]{6} |rgba$ ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2} ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*) (,\s*(0\.\d+|1)) $ |hsla$ \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*, \s*((\d{1,2}|100)\s*%)\s*, \s*((\d{1,2}|100)\s*%) (,\s*(0\.\d+|1)) $ |rgb$ ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2} ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*) $ |hsl$ \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*, \s*((\d{1,2}|100)\s*%)\s*, \s*((\d{1,2}|100)\s*%) $ )

1st Alternative \#[\da-f]{3}

\#the literal # (35₁₀ / 43₈ / 23₁₆)

Character Class[\da-f]{3}

{3}matches exactly 3 characters from the set below:

\da digit

a-fone character from a (97₁₀) to f (102₁₀) (case insensitive)

2nd Alternative\#[\da-f]{6}

\#the literal # (35₁₀ / 43₈ / 23₁₆)

Character Class[\da-f]{6}

{6}matches exactly 6 characters from the set below:

\da digit

a-fone character from a (97₁₀) to f (102₁₀) (case insensitive)

3rd Alternativergba$ ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2} ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*) (,\s*(0\.\d+|1)) $

rgbathe literal text rgba (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 2((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2}

{2}repeats the group contents below exactly 2 times:

Group 3(\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))

1st Alternative\d{1,2}

\d{1,2}a digit, repeated between 1 and 2 times

2nd Alternative1\d\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

3rd Alternative2([0-4]\d|5[0-5])

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Group 4([0-4]\d|5[0-5])

1st Alternative[0-4]\d

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\da digit

2nd Alternative5[0-5]

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Character Class[0-5]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

\s*any whitespace character, repeated any number of times

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*any whitespace character, repeated any number of times

Group 5((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*)

Group 6(\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))

1st Alternative\d{1,2}

\d{1,2}a digit, repeated between 1 and 2 times

2nd Alternative1\d\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

3rd Alternative2([0-4]\d|5[0-5])

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Group 7([0-4]\d|5[0-5])

1st Alternative[0-4]\d

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\da digit

2nd Alternative5[0-5]

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Character Class[0-5]

\s*any whitespace character, repeated any number of times

Group 8(,\s*(0\.\d+|1))

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

4th Alternativehsla$ \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*, \s*((\d{1,2}|100)\s*%)\s*, \s*((\d{1,2}|100)\s*%) (,\s*(0\.\d+|1)) $

5th Alternativergb$ ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2} ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*) $

6th Alternativehsl$ \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*, \s*((\d{1,2}|100)\s*%)\s*, \s*((\d{1,2}|100)\s*%) $

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

25 tokens

Regular Expression

^(
  \#[\da-f]{3}
 |\#[\da-f]{6}
 |rgba\(
         ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2}
         ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*)
         (,\s*(0\.\d+|1))
      \)
 |hsla\(
       \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*,
       \s*((\d{1,2}|100)\s*%)\s*,
       \s*((\d{1,2}|100)\s*%)
       (,\s*(0\.\d+|1))
     \)
 |rgb\(
         ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*,\s*){2}
         ((\d{1,2}|1\d\d|2([0-4]\d|5[0-5]))\s*)
      \)
 |hsl\(
       \s*((\d{1,2}|[1-2]\d{2}|3([0-5]\d|60)))\s*,
       \s*((\d{1,2}|100)\s*%)\s*,
       \s*((\d{1,2}|100)\s*%)
     \)
)$

Unit Tests

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