The flag of the Cook Islands has a light blue background that is rectangular with a 4:5 aspect ratio. In the center is a yellow shield with a white border, with a northern star and the depiction of an island with three palm trees. At the base of the shield is a red and white banner with the national motto of "He korokō mou, e tūmatauenga" written in blue. The shield and banner are surrounded by a white and green wreath with seventeen small yellow stars at the points.