I wore my black and white wrap dress with the moon shapes all over it. I had the perfect bracelet--black triangles just like the prism. Also the pointy shoes echo the triangle shape. I didn't have much in the way of rainbow accessories, but I used my red Chanel purse and then wore one of DD's rainbow hearts neckace. I turned it over to the silver side so it would be a little more subdued for work, though.
Maggy London black and white wrap dress
Rainbow hearts necklace
Black triangles bracelet--Nordstrom
Chanel red purse
White House Black Market pointy black flats