Joel,
Above all, you do you.
I'm a fan of getting input from people who know their way around these cars, but there are limits to what it's a good idea to ask about. When it gets into color selection, it's an intensely personal thing. I didn't check with anybody else before asking my wife out for the first time, nor did I consult my friends when I asked her to marry me. Color is a lot like that - you either love it or you don't.
That being said, colors are trendy. Blues are super hot right now, which would worry me. Did you always like blue, or just recently? Because if this is a recent thing, then you can just as easily fall out of love as you fell in it, and a color-change down the road is an expensive thing.
As @Marty Grzynkowicz alluded, I'm a fan of more "serious" colors on litte-bitty cars. The scale of these cars is tiny, and painting them in pastel colors makes them look doubly toy-like - like a plastic Easter Egg with wheels, helmed by fuzzy bunny with a white basket. There are no shortage of guys who love Meissen Blau, but the cars I've seen in that color always look like they came from a Malibu Barbie playset. You better have a strong sense of your own masculinity, or just go with it and get a ruffly pink ascot.
I'm not saying either of the blues you are looking at are that effeminate, but keep in mind that the scale of the car make it hard for people to take it seriously as an automobile (as opposed to a clown car). We live in an age where even a Toyota Corolla has a snarly grill with snake-eye headlights, and people who buy them often opt for black paint with tinted windows.
I'm a fan of silvers, blacks, and putty-hues. I'm not a flamboyant guy - the most colorful clothing I own is an orange tee-shirt I got in the Cozumel airport 10 years ago, long since faded by years of wearing it to mow the lawn.
Assess yourself, and what you really like (in the absence of what other people are doing). Marry the girl you want, not the ones your friends think is cute.
You do you.