Is there a dress code for passport photo? If you want to make sure your photo is accepted with your application, stick to a white wall. Your passport photo background must be white or off white. What is the best color to wear for passport photos? DO wear a shirt or dress with a high enough neckline that it will show in the final picture.DO opt for business attire or a collared shirt for your passport photos.DON’T wear anything on your head – no hats, headbands, or scarves.What should you not wear in a passport photo?