Fun fact: USU's official color was originally . . . royal blue. They changed to navy later, after navy was already (I believe) BYU's color. BYU switched to royal in the 70s. So USU stole navy from BYU while BYU was using it and BYU switched to royal 50 years after USU quit using it.

https://library.usu.edu/specol/usuarchives/universityhistory.html

http://www.deseretnews.com/article/865574070/Teeples-No-one-can-argue-that-changing-BYUs-colors-has-been-a-business-success.html?pg=all