Rainbows symbolize good fortune, happiness, and hope. So it's no surprise that the ROY G BIV palette has become an increasingly popular way to add a bright, festive touch to weddings. But pulling off a stylish (not cheesy) event that reflects the color spectrum can be tricky—we suggest keeping it casual, crafty, and playful (and avoiding tie-dye at all costs).

Create a multicolored effect by dressing your bridesmaids in every shade of ROY G BIV.

Photo: Tiffany Arment Photography