Any Blend modes that takes Hue from Blend layer and retains S and Lightness (Not Luminosity) from Bottom Layer? in Photo Beta on Windows Posted March 13 On 3/10/2019 at 4:23 PM, Ron P. said: I've always understood Luminosity and Lightness to be interchangeable, ie; the same thing. L in the HSL mean lightness. And this L does not come into picture when you use luminosity, color and hue blend modes. What comes is the luminosity (i.e) perceived brightness.