code: def hsl_to_rgb(self, h, s, l):
          
  
          h = h % 1.0
          s = min(max(s, 0.0), 1.0)
          l = min(max(l, 0.0), 1.0)
  
          if l <= 0.5:
              m2 = l*(s + 1.0)
          else:
              m2 = l + s - l*s
          m1 = l*2.0 - m2
          r = self._hue_to_rgb(m1, m2, h + 1.0/3.0)
          g = self._hue_to_rgb(m1, m2, h)
          b = self._hue_to_rgb(m1, m2, h - 1.0/3.0)
  
          # Apply gamma correction
          r **= self.gamma
          g **= self.gamma
          b **= self.gamma
  
          return (r, g, b)
docs: Convert a color from HSL color-model to RGB.
  
          See also:
          - http://www.w3.org/TR/css3-color/#hsl-color