During the start of the 20th century, a national awakening movement began to take shape in East Turkistan which sought to restore the independence of East Turkistan and liberate it from Chinese occupation. After several years of waging a War of National Liberation, this goal was partially realized on November 12, 1933 with the establishment of the first East Turkistan Republic (November 12, 1933- April 16, 1934), in Kashgar. It was on the eve of November 11, 1933 that the sixteen ministers of the RET would unanimously accept the Kök Bayraq (Blue Flag), which had been proposed several months earlier by the East Turkistan Independence Association (ETIA), as the national flag of East Turkistan.
The Kök Bayraq [Blue Flag] was also used as the National Flag of the second East Turkistan Republic (November 12, 1944 – December 22, 1949). Since the occupation of East Turkistan by the People’s Republic of China in 1949, the flag has been banned by Chinese occupational forces.
#0099FF is the official color code for the flag as designated by East Turkistan Government in Exile.