West Virginia University's official school colors are gold and blue.
The colors were adopted by the school’s upperclassmen in 1890, according to West Virginia University: A Pictorial History, 1867-1979. The color choices were taken from the West Virginia state seal. Additionally, the words “gold and blue” are sung in the first verse of Hail West Virginia.
The correct reference to West Virginia University’s color scheme is “the Old Gold and Blue”, not "blue and gold" because those would be Pitt's colors.