code: def render(self, compress=False):
          
  
          if not compress and self.original_literal:
              return self.original_literal
  
          candidates = []
  
          # TODO this assumes CSS resolution is 8-bit per channel, but so does
          # Ruby.
          r, g, b, a = self.value
          r, g, b = int(round(r)), int(round(g)), int(round(b))
  
          # Build a candidate list in order of preference.  If `compress` is
          # True, the shortest candidate is used; otherwise, the first candidate
          # is used.
  
          # Try color name
          key = r, g, b, a
          if key in COLOR_LOOKUP:
              candidates.append(COLOR_LOOKUP[key])
  
          if a == 1:
              # Hex is always shorter than function notation
              if all(ch % 17 == 0 for ch in (r, g, b)):
                  candidates.append("#%1x%1x%1x" % (r // 17, g // 17, b // 17))
              else:
                  candidates.append("#%02x%02x%02x" % (r, g, b))
          else:
              # Can't use hex notation for RGBA
              if compress:
                  sp = ''
              else:
                  sp = ' '
              candidates.append("rgba(%d,%s%d,%s%d,%s%.6g)" % (r, sp, g, sp, b, sp, a))
  
          if compress:
              return min(candidates, key=len)
          else:
              return candidates[0]
docs: Return a rendered representation of the color.  If `compress` is
          true, the shortest possible representation is used; otherwise, named
          colors are rendered as names and all others are rendered as hex (or
          with the rgba function).