Many nice vintage, even antique and ornate hinges have been found under layers of paint.
Do not use latex paint as it will affect the movement of the hinge. Spray paint is easier and faster than using a paintbrush and paint, but the choice is up to you. Get some clear metal primer. Placing this on the hinges first will help ensure that the paint stays intact.
Allow to fully dry between layers. If the hinges have evident nails, paint the nail ends as well, to ensure a whole look.
