@staticmethod<EOL><INDENT>def from_hsl(h, s, l, alpha=<NUM_LIT:1.0>, wref=_DEFAULT_WREF):<DEDENT>
return Color((h, s, l), '<STR_LIT>', alpha, wref)<EOL>
Create a new instance based on the specifed HSL values.

        Parameters:
          :h:
            The Hue component value [0...1]
          :s:
            The Saturation component value [0...1]
          :l:
            The Lightness component value [0...1]
          :alpha:
            The color transparency [0...1], default is opaque
          :wref:
            The whitepoint reference, default is 2° D65.

        Returns:
          A grapefruit.Color instance.

        >>> Color.from_hsl(30, 1, 0.5)
        Color(1.0, 0.5, 0.0, 1.0)
        >>> Color.from_hsl(30, 1, 0.5, 0.5)
        Color(1.0, 0.5, 0.0, 0.5)