Usually a whole cut is a later addition after you have gotten some basics like a cap toe. That said, the color is great. I would wear them with a suit or even nice slacks and jacket. probably not more casual than that.
Of course, if you get a more casual shoe, you won't want to wear them with a suit.
I would do them with navy, charcoal or mid grey.
Enjoy. Post a pic of them in action!