Team Colors of the AAF, CFL, UFL, USFL, and XFL

After completing the MLB, MLS, NBA, NFL, and NHL Team Color Codes spreadsheet, I decided to the old and current minor league football leagues. The results are below: 

Shades of Red

Shades of Blue

Shades of Gold

Shades of Gray

Shades of Green

Shades of Maroon

Shades of Orange

Shades of Purple

Shades of Yellow

Shade of Brown

Shades of Black

Shade of White