random color code javascript

function generateRandomColor() {
  var letters = '0123456789ABCDEF';
  var color = '#';
  for (var i = 0; i < 6; i++) {
    color += letters[Math.floor(Math.random() * 16)];
  }
  return color;
}

var randomColor=generateRandomColor();//"#F10531"

var randomColor = '#'+Math.floor(Math.random()*16777215).toString(16);
//generates a random color -> #56eec7

var r = () => Math.random() * 256 >> 0;
var color = `rgb(${r()}, ${r()}, ${r()})`;

var randomColor = Math.floor(Math.random()*16777215).toString(16);