We ordered these knobs in oil rubbed bronze for our cabinets and drawers in a very dark brown finish.  The picture up close led us to believe there would be more contrast, but there really isn't a lot of the lighter color.  That being said, we still are very happy with them.  In fact we just ordered more for other bathrooms.  For the drawers, we had to buy longer screws as the ones provided weren't adequate - but they are cheap.  The swirl design adds just enough interest so as not to be run of the mill.