Converts a HEX to RGB and vice versa. Takes a 6 character HEX or a single R/G/B value.

gistfile1.js

/**  
* convert_color()
* Converts a HEX to RGB and vice versa
* @param {String or Integer} color Takes a full 6 character HEX "ff5500" / RGB colour value 167 (< 255)
* @return {str} returns a HEX or RGB (space delimited), depending on input
* 
*/
function convert_color(color) {
    var tmp = "";
	
	if( color.length > 3 && typeof color === "string" ){ // Convert to RGB
		for(var x = 0, y = 2;x < color.length; x += 2){
			 if( x > 0 ) {
			 	tmp += " ";
			 }
			 tmp += parseInt( color.substring(x, y + x), 16 );
		}
	}
	else { // Convert to HEX
		tmp = color.toString(16);
	}
	return tmp;
}