So ON is having a great sale on dresses so I picked up this one in Purple Floral and now I need shoes. I wear ballet flats with my dresses-but I have no idea what color I should wear with these. I have black, silver, brown and navy blue with white polka dots. I'm thinking maybe a blue? But dark or light? Bonus points if it's a color I can wear with other dresses since I bought this in the Secret Cove color as well but I think black shoes will be fine with that one.