The Pennsylvania state flags dark blue background is required to be the same color as the blue in the United States flag. The identical color is meant to signify Pennsylvanias bond with the U.S. Similarly, the bald eagle perched at the top of states coat of arms also represents Pennsylvanias loyalty to the U.S. The coat of arms in the center of the flag symbolizes Pennsylvanias strengths. It features sheaves of wheat, a farming plow, and a corn stalk all symbolizing agricultural prowess. The ship on the shield symbolizes strong trade in the state while an olive branch below the shield represents peace and prosperity.