Red, white, and blue were the colors that represented the French Revolution. These colors, known as the tri colors, would be worn by the supporters of the revolution. The tri colors showed patriotism and brought a sense of community to the country. Men who were eligible and willing to fight for their country would always bear these colors to show that they were waiting on call.
In the United States during the American Revolution patriots also were seen around sporting the tri colors. Red, white, and blue seem to be the colors of freedom, for most countries that have endured a revolution use these colors to represent themselves.