Hair/makeup/accessories ideas?

For hair, go with a half up-half down hair-do. Not too dressy, but not too casual either. Go with black or silver flats to match the dress. A cute matching necklace or earrings. And for makeup, a little blue eyeshadow (a shade that matches or is in close color to your dress) and mascara will do. You don't want to dress up too much. Hopes this helps.