My SIL is getting married in May, and everyone in my family is in the wedding except for me, so they already have their outfits. I know we'll be taking a lot of family photos so I want to wear something complementary color wise and also feel good in it, so I"m going to buy a new dress. But I HATE the mall with every ounce of my being so I'd rather just buy a bunch online and return what doesn't work!

The colors for the wedding are dark and light purple - DH is wearing a black tux with dark purple vest, my 2 boys are wearing light purple shirts with purple checkered vests, and my daughter is wearing a light purple long dress. Bridesmaids are wearing dark purple long dresses, so anything purple is out! I was thinking maybe green would look good with them? I don't want to super clash! I'm a size M or L and would love to hide my mom tummy :-). Thanks!