It will match very closely, but will not be exactly the same as the receivers are metal while the levers are polymer coated, so the colors will look just a tiny bit different because of the fact that the materials are different.
I’m using the FDE on an Aero FDE M5 and the color match is excellent. As good as you will get with two different materials. I’d say it’s probably a closer match for my rifle than the Magpul grip and stock that I’m using.