Flowers for a beach wedding?

I was thinking hydrangeas (blueish) or tulips (pink and orange). The bouquets are a DIY project, and I like that both blooms will be very easy to hand-tie with minimal added "stuff". Neither will have to be wired to keep the bloom standing up and both look pretty in single flower bouquets. What do you think? Do you have any other suggestions? BTW, the colors are a sort of pistachio green and sky blue. (Alfred Angelo's pistachio green and pool blue)