I think that would depend on the suit and the color of the shoes.. I have these:
I think I was wearing an olive colored sport coat up top. I think they would also work fine with seersucker or cotton suits, but I am not sure how I would wear them with a wool suit. Maybe if the suit were less formal looking, like a brown or even olive colored wool..
I think it also depends on the style/look you're trying to pull off. If you're wearing suede shoes with a suit to a business function, forget it. But if you're going for more of a fashion/club look then I see nothing wrong with pairing it with a suit. Jeans/Slacks/Sportcoat are free game, I think.