The flag was originally designed by Andrew Carlisle Carson. Precise colors of red and blue were not designated in the 1911 legislation and some controversy arose over these colors. On February 28, 1929, the General Assembly stipulated the precise colors of red and blue as the same as the national flag. Controversy also arose over the size of the letter C and on March 31, 1964, the General Assembly further modified the 1911 legislation by revising the distance from the staff for the letter C and its diameter. Citations: ...

The flag was originally designed by Andrew Carlisle Carson. Precise colors of red and blue were not designated in the 1911 legislation and some controversy arose over these colors. On February 28, 1929, the General Assembly stipulated the precise colors of red and blue as the same as the national flag. Controversy also arose over the size of the letter C and on March 31, 1964, the General Assembly further modified the 1911 legislation by revising the distance from the staff for the letter C and its diameter. Citations: Senate Bill 118, 1911; Senate Bill 152, 1929; Senate Bill , 1964.

The design for the Territorial Seal which served as a model for the State Seal or Great Seal of Colorado has been variously credited, but the individual primarily responsible was Lewis Ledyard Weld, the Territorial Secretary, appointed by President Lincoln in July of 1861.

"Where the Columbines Grow" was adopted as the official state song on May 8, 1915, by an act of the General Assembly. The words were written and the music composed by A.J. Fynn. Traveling by horse and wagon to visit Indian tribes in the San Luis Valley in 1896, Fynn received inspiration to write the song after he came across a beautiful Colorado mountain meadow which was covered with columbines.