Parses a colour from a string. .parse('red') -> '#ff0000' .parse('#f00') -> '#ff0000' .parse('#ff0000') -> '#ff0000' .parse('0xff0000') -> '#ff0000' .parse('rgb(255, 0, 0)') -> '#ff0000'
Colour in some CSS format.
A string containing a hex representation of the colour, or null if can't be parsed.
Parses a colour from a string. .parse('red') -> '#ff0000' .parse('#f00') -> '#ff0000' .parse('#ff0000') -> '#ff0000' .parse('0xff0000') -> '#ff0000' .parse('rgb(255, 0, 0)') -> '#ff0000'