Flag of Andorra

Principality of Andorra
Use	State flag
Proportion	7:10
Adopted	1866 (Tricolor); 1993 (official coat of arms)
Design	A vertical tricolour of blue, yellow and red with the National Coat of Arms centred on the yellow band.
Designed by	Napoleon III
Use	Civil flag and ensign
Proportion	7:10
Adopted	1866
Design	A vertical tricolour of blue, yellow and red.
Designed by	Napoleon III

The national flag of the Principality of Andorra (Catalan: Bandera d'Andorra) features a vertical tricolour of blue, yellow, and red with the coat of arms of Andorra in the center. Although the three vertical bars may at first appear to be of equal width, the centre yellow bar is slightly wider than the other two so that the ratio of bar widths is 8:9:8 with an overall flag ratio of 7:10.

A civilian variant of the flag is said to have been created in 1866, although the design was standardized in 1993 after Andorra joined the United Nations.