I've been thinking about buying a pair of black AE fifth aves, since I don't have a pair of decent black shoes. Then I got to thinking how much I would wear them. I have one navy suit, which I usually wear walnut strands with. The idea was that I could get black Fifth Aves to dress the suit up more. But since FAs seem too formal to wear with nicer dark jeans, I'm not sure if they're versatile enough to justify getting. I'd probably only wear them to formal interviews or funerals. Is there a less formal black narrow shoe (size 8B) that could dress a navy suit up more than walnut, but also work with dark jeans? Or are dark jeans and black shoes a no-no?