In the fall of 1775 Congress chose brown as the original color for the national uniform. In October 1778, however, France sent uniforms with a predominance of blue coats (although there were also brown), and so on 2 October 1779 Congress switched to blue as the official color.
Smith, Francis
Concord, MA — With over 900 acres, the Minute Man Historical Park traces the route originally taken by the British Regulars from Lexington to Concord; includes the Minute Man Visitor Center, North Bridge Visitor Center, Hartwell Tavern, and the five-mile Battle Road Trail.
Patriot Battles: How the War of Independence Was Fought (2007)