Wedgewood blue with white mane and tail, 4 socks with pink or white hooves, and bald face. This color was always released in a matte finish, and colors varied slightly from light to dark. From 1961-1968, this mold was called 'Diablo - The Mustang'.
This color was named based on pottery and fine china, made by Josiah Wedgwood I from England, in 1979, and still operates today. Breyer adopted a different spelling however with 'Wedgewood'.