Mine is purple. The Vikings and my alma mater’s color.
@Canadan why is blue your color?
It's pretty much the only color that has a full spectrum of variants that work for me.
Everything else, minus maybe green, I think look weird on me.
I kind of feel this way too. I never choose it as a top choice, but certain shades look really good on me (according to my wife). And this was the color that I first experienced an "Ah ha!" moment when it came to using color to complement skin tone (I mean, let's be real - I was a guy with 4 brothers & no sisters going to an all-boys HS. I had no clue about colors/wardrobe stuff haha!) I was with my friend at a discount store (actually a weekend show in a hotel) and we found the world's ugliest shirt. Just for laughs I said "I'm gonna try it on - maybe buy it for a joke." Once I put it on, we both said "Hmmm - that actually looks good on."
And a lot of the colors I like? They look like crap when I wear them. Oh, well.