Flag of the Netherlands

"The flag of the Netherlands is a horizontal tricolour of red, white, and blue. Variants of the flag have been in use since 1572, and in 1937 the flag was officially formalized as the national flag of the Kingdom of the Netherlands. ... The national flag of the Netherlands is a tricolour flag. The horizontal fesses are bands of equal size in the colours, from top to bottom, red (officially described as a "bright vermilion"), white (silver), and blue ("cobalt blue"). The flag proportions (width:length) are 2:3." [Flag of the Netherlands. Wikipedia]