#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)(?:rgb(?:a|)\s*|#)(?:\(|)\s*(25[0-5]|2[0-4][0-9]|1[0-9]?[0-9]?|[1-9][0-9]?|[0-9]|[A-Fa-f0-9]{2}|[A-Fa-f0-9]{2})(?:\,|)\s*(25[0-5]|2[0-4][0-9]|1[0-9]?[0-9]?|[1-9][0-9]?|[0-9]|[A-Fa-f0-9]{2}|[A-Fa-f0-9]{2})(?:\,|)(?:\,|)\s*(25[0-5]|2[0-4][0-9]|1[0-9]?[0-9]?|[1-9][0-9]?|[0-9]|[A-Fa-f0-9]{2}|[A-Fa-f0-9]{2}).+"
Local $sString = "" & @CRLF & _
"" & @CRLF & _
"#3498db" & @CRLF & _
"rgb(231, 76, 60)" & @CRLF & _
"rgb(155, 89, 182)" & @CRLF & _
"rgba(46, 204, 113,1.0)" & @CRLF & _
"" & @CRLF & _
"" & @CRLF & _
"rgba ( 52, 152, 219,1.0)"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH)
Local $aFullArray[0]
For $i = 0 To UBound($aArray) -1
_ArrayConcatenate($aFullArray, $aArray[$i])
Next
$aArray = $aFullArray
; Present the entire match result
_ArrayDisplay($aArray, "Result")
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm