As the traditional color associated with the 50th wedding anniversary is gold, it is appropriate to include it when decorating for a party. It should be used sparingly, however, ideally as a highlight for a base color like white. Alternatively, the color scheme could match that of the wedding 50 years beforehand, perhaps with golden accents.
A good way to give a party venue a gold ambiance is with lighting. Christmas lights or lamps with a warm glow are useful. Christmas tree lights could also be arranged as the number 50. Gold tableware with a white or champagne-colored tablecloth is another good way of adding a touch of gold without overdoing it.
Flowers can be matched to the color scheme, either in vases or scattered on tabletops without the stalks. Placing flowers around the party venue is a good way of brightening up the atmosphere and creating easy centerpieces for dining tables. Balloons are another simple way to create a vibrant atmosphere, ideally combining gold balloons with lighter colors, again matching the general color scheme of the party.
Aside from the color scheme, placing photos of the husband and wife around the room is a good way to honor the celebrating couple. Ideally, these could chronicle their time together, from their wedding day through the years to the present.