First, apply a layer of foundation to your skin to cover any blemishes or imperfections and even out your skin tone. Next, start with your eyes. Consider adding a layer of foundation to your lids as this will help your eye shadow stay in place. Starting from the inside corner of your eye, apply a layer of eye shadow up to the crease with an angled brush. If your dress is navy or a darker blue, consider eyeshadows in browns, golds or dark blue. If your dress is a lighter blue, consider using shadow in shades of pink, white or sky blue. Avoid using too close a shade, as this will give your makeup a costume look. Line the eyes with a navy blue, brown or black pencil liner. Black or brown liner looks best on women with blue or similarly light-colored eyes. Navy liner looks best on women with darker eyes. Finish with a layer of navy or black mascara to bring a boldness to your look.