The blue shirt with logo was a J. Collins thing but that was all that was specified via a bulletin.
There is a document called ECAC Football Bureau Policies and Procedures which can be found at
http://www.ecac.org/Officiating/Foot...and_Procedures
and that specifies no color(s) at all.
"Pre-Game Dress
For all games (except JV and light-weight games), officials and clock operators must arrive at game site in sport coat, shirt and tie."