Lots of photographers everywhere tend to want what's called the "Blade Runner" look in their images, and what they don't realize is just how incredibly simple it is to do within the camera and not even worry about post-production at all.
And guess what: it has everything to just do with white balance and the lights around you. The scenes that we're specifically talking about happen in the cities--which are bathed in Daylight colored lighting. If you're unaware, a flash is balanced to daylight. When you look at the lights around you too, they'll tend to be whiter in color and output. To clarify just a bit more, think about your phone's white light color display and how it becomes warmer at night. . thephoblographer.com