Honestly, in person there isn't much of the sky blue you see in pics. And the e92 silverstone II is different from the past versions on older models. The only time I really notice a sky blue color is in some dreary weather, and it has to be a certain lighting.
At night, its more of a darker silver. During sunlight its a medium to light silver. When I was choosing, I was really concerned about the sky blue from the pictures I had seen, but when I saw it in person, I just fell in love. There are some colors that you think look great, but silverstone really made my jaw drop when I saw it in person for the first time. I couldn't believe it was the same color I saw on these forums, i actually had to check the paint code to be sure
I'd check it out in person first if you can.