Color can be used in so many ways for weddings. From an accent color to the main color theme used in everything from the bridal party dresses to the table cloths and napkins at the reception. It is up to you how much color, or how little color, you want.
For example, you have selected a deeper shade of blue for your bridal party. The bridesmaid dresses are the color of the ocean with your groomsmen bow ties matching. Your bouquet is white or ivory roses or calla lilies intermingled with the blue hydrangeas which carries the color theme elegantly throughout the bridal party.
Your wedding cake is a cascade of white flowers and pale blue ribbons. Beautiful white and blue bows are scattered throughout carrying your colors even further. Finally, you have the beautiful blue garter that your husband can sexily slide off your leg.