The national flag of Yemen has a ratio of 2:3 and features three horizontal bands of equal size, from top to bottom: red, white, and black. The red band measures 1/12 of the flag's height, the white band measures 1/6 of the flag's height, and the black band measures 1/4 of the flag's height. There is also a vertical red stripe on the left side of the white band that extends to the top of the flag with a width of 1/4 of the flag's height. The colors are defined using the following Pantone codes: Red 186C, White, and Black 100C.