The vast majority of seashells you'll find on New England beaches are white, or off-white—it's probably the same throughout the world. I've been drawn to the iridescent orange and yellow ones since I was a child, though. They tend to be smaller, harder to find, and "prettier" to use the term I used as a child. Above, shells collected on my past few walks along the beach. I hadn't picked them up in years, and I was instantly transported back to childhood.