Suggestions

Today I went to Hobby Lobby on my lunch hour. I have been wanting a shelf to put up in Kylie's room. However, the shelf needs to be painted. So my question is should I paint it white, black, or brown? Kylie's furniture is cherry wood colored(almost black), her curtains are white and I have a white lamp in her room. I originally was hoping to paint it white but I am just not sure since all of her furniture is cherry. I cannot wait to have her room finished! It has been fun to see it come together but a little stressful at times too. I just want it to look good when I am done. The funny thing is it will be the only finished room in the house...she is already taking over:)