Typically, the strobes are blue and red.
Chicago is famous for having only Blue lights on its police cars
Emergency lights in state police cars in Indiana are blue and red in most counties in Indiana. These are common colours, not just in Indiana, but throughout the United States and the world!
In Kentucky, the law prohibits the use of certain colored lights on vehicles. Flashing, oscillating, or rotating red lights are generally reserved for emergency vehicles. Blue lights, except for authorized vehicles, are also restricted. It's crucial to comply with state regulations to avoid legal issues and ensure road safety.
Lights, and Siren.
Not all police cars are dark blue. In fact most are not. The ones you see that are dark blue are painted that color because that is the color chosen by that police dept.
Contrary to popular belief, police do not pick on cars of a certain color.
It is noted that police cars always seem to have brighter lights than the normal cars. For one thing, the police always have their lights aimed precisely at the factory recommended settings. Some police cars in years gone by used to install aircraft landing lights in place of the bright lights for added illumination. Don't know if they still do this though. Some departments rewire the bright lights to alternately flash on a high speed pursuit for identification purposes.
Red and yellow cars. They are the most eye-catching.
To warn drivers of their presence and to pull people over with.... Do you seriously have to ask?
To make the pretty blue and red lights higher and easier to see.