The national flag is bottle green in color and rectangular in size with the length to width ratio of 10:6 bearing a red circle on the body of the green. The red circle has a radius of one fifth of the length of the flag. Its center is placed on the middle of the perpendicular drawn from the nine twentieth part of the flag. The background colour symbolizes the greenery of Bangladesh with its vitality and youthfulness while the red disc represents the rising sun and the sacrifice our people made to obtain our independence. Prescribed sizes of the flag for buildings are 305cmX183cm, 152cmX91cm and 76cmX46cm and for vehicles are 38cmX23cm and 25cmX15cm. The first flag of the independence movement. The flag initially had the the map of Bangladesh in gold in the center of the red circle.