What countries have flags that are in shades of blue?

Countries whose flags are dominated by the color blue are: the flag of the Kingdom of Sweden, the flag of the State of Iceland*** and the State of Iceland, the flag of the State of Greece*** and the State of Greece*** and the State of Iceland? , the flag of Bosnia and Herzegovina, the flag of Kosovo*** and State, the flag of the Federal*** and State of Somalia, the flag of Cape Verde*** and State, and so on.

Blue color mostly symbolizes the sea in national flags, so the countries whose flags are dominated by blue tones are mostly maritime countries.

Expanded information:

The national flag of the People's Republic of China is the five-starred red flag, which is red in color. The flag is red, with a length-to-width ratio of 3:2, five yellow five-pointed stars in the upper left, and four smaller stars ringed to the right of a larger one, each with a corner point facing the center of the larger star.

On September 27, 1949, the First Plenary Session of the Chinese People's Political Consultative Conference formally decided to adopt the proposal of the five-star flag on a red background and renamed it the "Five-Star Red Flag".

On September 29, 1949, the People's Daily published the drawings of the new flag and the instructions on its method of manufacture, which were made available to all sectors of society for production and use. The new national flag was published in the People's Daily on September 29, 1949, offering to all sectors of society to make and use.

On October 1, 1949, the five-star red flag was raised for the first time in Beijing's Tiananmen Square during the founding ceremony of the People's Republic of China.

The first flag to fly in Tiananmen Square was sewn by Zhao Wenrui, a female seamstress, who finished the job at 1 p.m. on Sept. 30th. Zeng Liansong was initially not convinced that the five-starred red flag was his design because the large five-pointed star did not have a sickle and hammer in the published pattern.

However, the General Office of the Central People's Government later sent him an official letter formally informing him that he was the designer of the flag and enclosing five million yuan as a reward.

Baidu Encyclopedia - National Flag

Baidu Encyclopedia - National Flag of the People's Republic of China