 
 			else
 
+				# hsl model
 				hslA = colorA.toHsl()
 				hslB = colorB.toHsl()
 

	##############################################################
	## Class methods

	@mix: (colorA, colorB, fraction = .5, limit = false, model = "husl") ->

		result = null


			else if color.hasOwnProperty("h") or color.hasOwnProperty("s")

				h = if isNumeric(color.h) then color.h else 0
				h = (h + 360) % 360
				s = if isNumeric(color.s) then convertToPercentage(color.s) else 1
				if _.isString(color.s) then s = numberFromString(color.s)

