I've posted two wardrobes that feature black and ivory. I can't tell you how much I love this combination. I could switch my entire wardrobe to black and ivory and be satisfied.
This wardrobe post features a black base and the other an ivory base. Each piece was selected because of the curve friendly cut. Everything nips in at the waist to define an hourglass shape and minimize any unfriendly bits in the middle. I've introduced a touch of gold in this wardrobe to dress it up bit for evenings, however, every piece except for the shoes and evening dress are work/daytime friendly too. I would rotate in the shoes from the ivory based wardrobe to dress things down a bit.