code: def html_table_color(row, item, color=(0, 0, 0)):
      
      result = [0, 0, 0]
      color_list = color_check(color)
      max_color = max(color_list)
      back_color_index = 255 - int((item / (sum(list(row.values())) + 1)) * 255)
      for i in range(3):
          result[i] = back_color_index - (max_color - color_list[i])
          if result[i] < 0:
              result[i] = 0
      return result
docs: Return background color of each cell of table.
  
      :param row: row dictionary
      :type row : dict
      :param item: cell number
      :type item : int
      :param color : input color
      :type color : tuple
      :return: background color as list [R,G,B]