is there a method to color value in javascript?

  <div class="tokenfield form-control readonly">
  <input type="text" name="words" value="one (1.00),numéro (1.00),two
  (1.00),one (1.00),three (1.00),santé (1.00),général (1.00),élevé (1.00),efforts 
  (1.00)" id="id_keywords" tabindex="-1" style="position: absolute; left: -10000px;">

i want to color all "one" in red and "two" in green in javascript:

   var arr = "one,numéro,two,one,santé......"
   $('input#id_keywords').val(arr);

how can i do this ?