Just purchased a duvet cover and 2 pillow shams in the shade of Sea Spray from West Elm. This shade is a very light blueish green tinted color (if that makes sense). I would also like to purchase a sheet set and 2 additional pillow cases, however I'm stumped on which color/shade to choose. Is it okay to get them in the same color or will that be too much? I was thinking maybe white? But white makes me a little nervous. Any suggestions?