I like the color of the sky in New York City. The concentration of light pollution makes it look different than any other sky. This (the color at left) is the best representation I could find of its color. This is the color at not quite it's highest point, but well above the horizon.
This is the color I see when I look out the 18th floor window of my office, to the 30th floor of the building next door. It's not the color I see when I look straight up, but it's up there.