Tbh once on the bike you don’t really notice the colour of the rotors. I have blue and they actually didn’t stand out as much as I’d thought they would. I also have matched seat clamp and head doctor. But looking at your bike blue would match up well with the frame and existing pivots.
I’m a recovering colour matching whore !!!! Spent fortunes over the years(yes it is part of the fun) maybe now older wiser/less money I go for silver/black hubs as easier to fit with whichever new bike you buy which we all know happens very often 😉
Blue. Most rides you’ll look at it and think “cool”.
Plus, on the man maths side, when you come to sell the wheels there are fewer sets around with blue hubs (I know, I tried buying some), so you can keep the price higher.
But as above, it’s a slippery slope. Then you’ll want to get the rotors to match, plus seat clamp, grip collars etc.
edit: of course you sohuld go for the “proper” option of Green… 😉