Swedish Crowns. A National Symbol of Sweden. Three Crowns (Swedish: Tre Kronor) is a national emblem of Sweden, present in the Coat of Arms of the Realm of Sweden, and composed by three yellow or gilded coronets ordered two above and one below, placed on a blue background. The emblem is often used as a symbol of authority by the Swedish government and by Swedish embassies around the world, but also appears in other less formal contexts, such as the Swedish national men's ice hockey team, who wear the symbol on their shirts and thus are called "Three Crowns" , and atop the Stockholm City Hall . The Three Crowns are also used as the roundel on military aircraft of the Swedish Air Force and as a sign on Swedish military equipment in general.