I'm just yanking your chain on the chrome lug nuts. It's definitely a personal preference thing. Mine happens to be black with black wheels but that doesn't mean yours should be.
McGard and Gorilla both make nice one-piece black lug nuts that aren't over the top expensive. I personally have the Gorilla ones. I prefer one piece to the covered two-piece design. It eliminates the corrosion under the cover issue that causes socket fitment issues though this problem can largely be negated with proper care and keeping an impact gun off of them. There have also been some members reporting that Ford makes a nice black lug nut but if I remember it too is a two-piece lug nut and was a bit more money.