The Spanish flag is a red and yellow horizontal triband. A simplified version of Spain's coat of arms is pictured on the yellow band, towards the hoist side. The height of this flag is two-thirds the width. Spain's flag was officially adopted on December 19, 1981. The Spanish coat of arms depicts two crown-topped pillars of Hercules The two columns flank a shield that displays a castle, a lion wearing a crown, red and yellow vertical stripes, chain mail, and three fleurs-de-lis in an oval in the center. An ornate red and golden crown sits atop the shield.