Interview attire help!

Does black pants and brown pumps and a white button up look bad for a women for an interview.? I really need this job for a boutique. I used to work at a boutique and I went with black pants white button up and nude flats and I got the job. The thing is I do not have those flats anymore so I went to the store and bought some brown pumps . Do you think it will look bad? Help the pumps are dark brown almost black. Am I better off wearing all black or?