After the Communist Party of China took power in 1949, the flag of China became a <answer>red</answer> flag with a large star symbolizing the Communist Party, and smaller stars symbolizing workers, peasants, the urban middle class and rural middle class. The flag of the Communist Party of China became a <answer>red</answer> banner with a hammer and sickle, similar to that on the Soviet flag. In the 1950s and 1960s, other Communist regimes such as Vietnam and Laos also adopted <answer>red</answer> flags. Some Communist countries, such as Cuba, chose to keep their old flags; and other countries used <answer>red</answer> flags which had nothing to do with Communism or socialism; the <answer>red</answer> flag of Nepal, for instance, represents the national flower.
In the mid 20th century the flag of Laos was primarily what color?
red