The Connecticut flag, which is among one of the most ancient flags, was originally used during the Revolutionary War when Connecticut troops used this seal on their flag. The flag consisting of a blue field with the arms in the center was officially adopted in 1895 after pressure from the Daughters of the American Revolution. On June 3, 1897 it was regulated that the arms should be in color in the center of a field of azure blue. The flag was originally supposed to be “squarish” but further regulations in 1957 said the flag had to have proportions of 2: 3.
If you’re looking for a more formal version of this flag check out our Connecticut Ceremonial Flag.