JS Random color generator

js-random-color

//Ref: http://www.paulirish.com/2009/random-hex-color-code-snippets/

//1
'#' + (function co(lor){   return (lor +=
  [0,1,2,3,4,5,6,7,8,9,'a','b','c','d','e','f'][Math.floor(Math.random()*16)])
  && (lor.length == 6) ?  lor : co(lor); })('');
  
//2
(function(m,s,c){return (c ? arguments.callee(m,s,c-1) : '#') +
    s[m.floor(m.random() * s.length)]})(Math,'0123456789ABCDEF',5)

//3
'#'+(function lol(m,s,c){return s[m.floor(m.random() * s.length)] +
    (c && lol(m,s,c-1));})(Math,'0123456789ABCDEF',4)
    
//4
'#'+'0123456789abcdef'.split('').map(function(v,i,a){
  return i>5 ? null : a[Math.floor(Math.random()*16)] }).join('');
  
//5 - Perfect
'#'+Math.floor(Math.random()*16777215).toString(16);