code: public static final String getRandomHexColor()
      {
          final int r = randomRGB();
  
          final int g = randomRGB();
  
          final int b = randomRGB();
  
          return rgbToBrowserHexColor(r, g, b);
      }
docs: Generates a random hex color, e.g. "#1234EF"
  
  @return String