Red and Blue Lights for Emergency Vehicles: Why These Colors?

Man holding a beer with police car behind himWhenever you are driving on the road and hear sirens from afar, you most likely see red and blue lights in your rearview mirror. It could be a fire truck, police car, ambulance or any emergency vehicle with lights from LED Equipped or other lighting stores. No matter what type of vehicle it is, it is essential that you pull over on the side, so it can safely get to its destination as soon as it can.

The different functions

Emergency lights have many essential functions, such as visually conveying how crucial the journey of an emergency vehicle is. Whenever an ambulance is going to or from the scene of an accident to the hospital, these lights inform other drivers about its presence. This way, they will move out of the way.

There are cases wherein these lights also warn drivers to be careful, slow down or go around when passing an area. This occurs mostly when they see an emergency vehicle with lights parked in an accident scene or an unsafe area. Of course, you will also see these emergency lights flashing if you happen to violate the law, such as not following a traffic signal or speeding.

The meaning behind the colors

Authorities chose red because this color is linked to warning and stop signs. However, these red emergency lights could easily get lost in the road where traffic is heavy since the majority of taillights are red. For these cases, blue lights generally stick out and warn other drivers.

But some studies reveal that red lights could still be noticeable in the daytime, and blue lights are noticeable at nighttime. Utilizing a mix of blaring blue and red lights will help notify drivers no matter what time of day it is. Moreover, other experts think that the combination of these colors eases issues linked to colorblind drivers.