Silver is a versatile color for shoes, since it is a color that goes particularly well with white. This makes them ideal for wearing at weddings. A subtle silver tone is also neutral enough to go with many other colors. Unlike a wedding dress, the shoes you wear on your big day can be worn at many other occasions, so try to pick a pair that you think you will want to wear again and again, in different settings.
I love the ribbon-like look of these:
Silver platform wedding shoes pictured: Luichiny Women’s Mist Tee Platform Sandal