Blue And Silver Theme.

I’ve been looking everywhere and have been finding it really difficult to find things to go with the theme that I want for my wedding, I like the idea of navy/midnight blue and silver. All my family seem to think it would be really dark and horrible, but I thought it would be quite elegant and different since every wedding I have been to has been pink. I’ve tried to look for colour pallets and most florists’ options are in pink or yellow, never blue. Can you help me? thankyou