[ShyGuy]

I'll go with gold. I think the other colors will clash with the light blue exterior too much. You want something to be mild but yet stands out, go with a nice light bland color.

 

[ShyGuy]

I suppose if you don't mind a stiffer ride and have a bit of money to spend. Lower the ride and some rims. And if you're into the customization and even more cash. Carbon hood would draw the eyes away from the powder blue.
Honestly there's a Scion FRS in my office all tricked out with Hello Kitty and it's quiet feminine. So I suppose, go the opposite way of Hello Kitty?