The national flag of Romania (Romanian: drapelul național al României) is a tricolour featuring three equal vertical bands colored blue (at the flagpole), yellow and red, with a width to length ratio of 2:3.

The current version was adopted in 1989 in the wake of the Romanian Revolution and is defined in the Constitution of Romania as well as by organic law 75/1994, plus several later clarifications. Starting in 2023, the law provides exact color shades for print and digital purposes.

The colors have been used individually or in pairs on official insignia and symbols since the 14th century, but were first officially combined on a flag in the 19th century. Although the flag has seen several variations over the years, its overall design has remained consistent, maintaining the same colors and a similar arrangement of the bands. Wikipedia