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

If you came here and is using Python, here's how:

hex_code = '#FFF'
new_hex_code = '#{}'.format(''.join(2 * c for c in hex_code.lstrip('#')))