The blue hour reliably arrives shortly before sunrise and after sunset, and this is a great time to take photos. If you manually adjust your white balance on your camera, you can make your photo more blue!
Read the tips on how to take a better photo - Click Here
I adjusted the white balance in my camera to Kelvin 3,800 (Fluorescent).
Take a photo at blue hour (either end of the day) and help the background become navy by changing your setting in your camera to help.