Hi Kelley, that is a beautiful dress. If you want a pop of colour, than you could look at buying some in a colour you like ( that is if you don't already own some suitable ones) that go with something else in your wardrobe already. Really anything goes that you love. It is quite common for brides to do that with their shoes. Whichever colour you choose, I would look at picking that up in bag, jewellery and even a wrap, jacket or coat if you can. However I am a matchy-matchy person and not everyone is. A nude or silvery pair is also a safe choice and may go with more things in the future.
I know it's really hard when you're young, and vulnerable to mean comments you know others could make if you don't make the choice they think you should. But if you can feel really happy with whatever you choose, then stick to your guns as we say here in NZ! Cheers and good luck.