What color shoes and purse do I need to wear with my suit?

I have a very important meeting on Friday with a large consulting firm that potentially wants to hire me. I have a chocolate brown skirt suit that I am planning to wear (unless a skirt is a bad idea—it’s knee length and not sexy). I have a cream/off-white collared shirt to wear underneath. What color shoes should I wear? And what color purse? I need to buy all this stuff as I am not used to dressing up so fancy but want to dress to impress!