U N Member Flag Adopted 1830 Flag Proportion: 13:15 Capital: Brussels Language: Dutch, French, German Currency: Euro Old Currency: Belgian Franc Continent: Europe The current flag of Belgium was officially adopted in 1831.  Belgium’s flag, inspired by the national flag of France, features three equal vertical bands in black, yellow and red.  These colors were derived from the coat of arms of the Duchy of Barbant, a historical region located in what is now considered Belgium and the Netherlands.  These colors first appeared on the original version of the flag used during the Belgian revolution against Austria in the 1700’s.  This previous design featured a horizontal pattern, using the same colors in a different order, and was used only briefly until the current flag was created and adopted.