Brake rotor discoloration

I have noticed that my brake rotors have changed colors. Instead of the normal silver/ rust color, they have become a blueish color. When I ride for an extended trip, I have checked to feel of them and they are cool to the touch. They actually look better and I am not having any brake dust build up. I dont feel any scoring or wear to the touch. Should I be concerned?
 
No. That is normal for high friction ceramic brake pads that come on these cars. You can also experience this kind of rotor hue if the vehicle does more local around town or bumper to bumper traffic driving....here on Long Island 95% of mu customer have the same color on their rotors. :D