        color = vtkColor3ub(colorSeries.GetColor(i))
        c = list()
        for j in range(0, 3):
            c.append(color[j] / 255.0)
        t = scalarRange[0] + (scalarRange[1] - scalarRange[0]) / (numColors - 1) * i
        lut.AddRGBPoint(t, *c)
