Providing permanent public access to Colorado's state documents since 1980.
Colorado's State Symbols: The State Flag
Colorado's distinctive state flag, with its large red and yellow "C" over a blue-and-white-striped background, was adopted in 1911. Did you know that a law passed in 1929 requires the red and blue used in Colorado's flag to be the exact shade of red and blue used in the United States flag? Interesting. For more detail on the State Flag see the online information from the Colorado State Archives.
Did you know? -- from 1907 to 1911, Colorado's state flag looked like this: