pale greys, greens, blues and purples! they look nice together and could be summery as well! The grey-ish purple or light sage green could be nice for the bridesmaids with the blue hues and greens in the flowers?
For a baby nursery, kitchen, girls room. bright, fresh mint color should be complemented with shades of crimson to create an original color combination. Use these colors when decorating - Color Palette Ideas