According to Washington's General Order of 2 October 1779. Virginia regiments were to be blue coats lined white with red facings (Leffert, p10). Deserter reports in the same source give a variety of uniforms, Blue coat (1st, 2nd Virginia although one in the 2nd is a brown coat), light blue drab coat with pale blue facings (3rd Virginia) hunting shirts, (4th, 6th and 7th Virginia but 7th also has pale blue turned up with red), purple linen coat turned up with green and brown linen coat turned up with white (5th Virginia), and light brown coat with red facings (9th Virginia)
Virginia State Troops - 1st Virginia State Regiment striped Virginia cloth while the 2nd and 3rd State regiments are blue coats turned up with red.
Take your pick , but you won't go wrong with a blue coat and red facings.
Cheers
Chris