'Converts red, green and blue integer values to approximate CIE 1931
x and y coordinates. Algorithm from:
http://www.easyrgb.com/index.php?X=MATH&H=02#text2. May not produce
accurate values.'

def rgbToCIE1931(self, red, green, blue):

    point = self.color.getXYPointFromRGB(red, green, blue)
    return [point.x, point.y]
