This could be a cool idea, pick a shade of green (or YELLOW) and have bridesmaids dress from dark to light in that color. I've also seen it where the maid of honor wears the lightest color, and the maid furthest from the bride wears the darkest color
Beautiful sky blue bridesmaids dresses are perfect for a spring wedding. As well as a winter wedding with the addition of a small shrug or a faux fur stole. Accented with white flowers to make them really pop!