White was a brief thing in the '80s, and to my eye it never really settled. It passed like a fad after something like 3 years.
Black is in vogue right now. I used to love the look because it looked more industrial and "bad" in 80's slang. In my circles, it came about as the look run for a rally or rallycross course where folks ran steelies out of need. But it doesn't work on everything. To my eye a clean unmodified car with black wheels /risks/ looking fake, whereas a lowered/lifted/modified vehicle with black wheels fits better.
I'll second the "go to tire rack" and play suggestion.
Oh, one more point - oem rims, recolored, look like recolored oem wheels. It doesn't work. I did it and was not impressed after I got over the "look what I did" thing. If you want a different look, IMO just saving up and buying aftermarket wheels is the way to go. Or better yet, invest in a different mod with more functional purpose. Or save for retirement. "The truth about cars" boards are full of stats today about the poor state of American's financial savings.
-m