flag of Colorado
The Centennial State
Admitted August 1, 1876

Colorado’s original state flag was adopted in 1907, but only one was ever produced and it was never flown publicly.

In 1910, not knowing the state adopted a flag at all, a Colorado chapter of the Daughters of the American Revolution called for submissions for a flag design. The winning submission was designed by Andrew Carlisle Carson.

This (second) flag was officially adopted June 5, 1911.

Its colors were standardized in 1929 and its proportions in 1964.


The Colorado flag is a triband of blue and white.

A red letter ‘C’ is charged upon the stripes and within the ‘C’ is a golden disc.

flag of Colorado


  • a letter C with a circle at the center


    Colorado, the ruddy soil (red), sunshine (gold)

  • three horizontal stripes


    Colorado skies (blue), snowcapped mountains (white)


The Colorado flag uses the same red, white, and blue as the U.S. national flag.

The colors do have symbolic meaning as described in the Iconography section above.

Neither Colorado law nor the Office of the Secretary of State provides Cable or Pantone values for the gold of the flag.The hex value here is an approximation.
Cable No. 70075 Old Glory Blue
PMS 282c
Cable No. 70001 White
Pantone White
Cable No. 70180 Old Glory Red
PMS 193C


The Colorado flag is produced with a proportion of 2:3.

Colorado statute specifies the proportion and spacing for the flag’s visual elements, which is rendered here.

Attached to the flag should be a cord of intertwined gold and silver, with one tassel of gold and one of silver.

construction sheet for the flag of Colorado

Previous iteration

The original and forgotten Colorado state flag featured the coat of arms on a field of blue. It “flew” from 1907–1911.

Colorado flag from 1907