These pictures look more like black smoke than grown-out fever coat, but I agree that it could be either.
Is her coat white at the base of the hair (when you part the hairs)? That would make her a smoke.
If a smoke, I would describe her color as black smoke and white (or possibly smoke tortie and white, there might be some cream brindling in there).
Most cats are not any particular breed, so we call them domestic shorthair or longhair based on coat length. In her case, I would guess that she will probably floof out and become a longhair, but it's hard to be certain.