How to convert 3-digit HTML hex colors to 6-digit flex hex colors

Question

I want to convert a three-digit hex color which is coming from HTML CSS to a six-digit hex color for Flex. Can anyone give me code to convert 3-digit hex colors to their 6-d

Answer 1

Other answers provided the process but I will provide the code using regex and the java programming language

String value = "#FFF";
value = value.replaceAll("#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])", "#$1$1$2$2$3$3");