code: def color(teffs):
      
      colors = []
      for t in teffs:
          if t >= 7500:
              colors.append('blue_white')  # RGB:CAE1FF
          elif t >= 6000:
              colors.append('white')  # RGB:F6F6F6
          elif t >= 5200:
              colors.append('yellowish_white')  # RGB:FFFEB2
          elif t >= 3700:
              colors.append('pale_yellow_orange')  # RGB:FFB28B
          else:
              colors.append('light_orange_red')  # RGB:FF9966
      return colors
docs: Conventional color descriptions of stars.
      Source: https://en.wikipedia.org/wiki/Stellar_classification