The flag of Sweden is a simple, iconic design featuring a yellow or gold Nordic cross on a blue background. The cross extends to the edges of the flag, with its vertical portion closer to the hoist (left side), a design shared by other Scandinavian countries as a symbol of their shared heritage. The colors and cross design hold special significance: Blue and yellow are traditional Swedish colors, believed to have been inspired by the Swedish coat of arms, which features three gold crowns on a blue background. The Nordic cross reflects Sweden's connection to other Nordic nations and represents Christianity, a common theme in Scandinavian flags. The current design of the Swedish flag has been in use since the 16th century and was officially adopted in 1906.