I know it's kind of moot to even argue color perception, and the evidence I'm providing can be picked apart because you never know the photo settings, but from my own experience attending games, the last time Oregon rocked the darker green it was noticeably different depending on the lighting that day
Here is a daytime shot from an overcast day
Same game, after the sun went down
And in direct sunlight
I expect this new shade of green to similarly change shades depending on the lighting conditions. Oregon rocked these military green uniforms on an overcast day.
Thanks for the back up @upperV03