Interesting note in a recent Daily article by volleyball players Lexi Zimmerman (swoons) and Courtney Fletcher. Apparently, Nike trademarked the "maize" color, so Adidas had to make up their own color called "sun":
Nike also copyrighted the color “Maize,” so Adidas actually had to make a new version of our school color, now known as “Sun” (which the volleyball team has affectionately dubbed the “highlighter” jerseys). While the switch has become progressively easier throughout the past two years, it’s come with growing pains.
So that should explain the color differences we've noticed. Because knowing is half the battle.