It can be red or blue
Blue and red
Whatever colour they happen to be painted (one can not see the siren usually). I hope you are not confusing the siren (which makes the noise) with the flashing lights (which are blue).
White and red :)
White ---um try google
the ambulance is going to the hospitalthe ambulance has its siren onthe ambulance is moving (:PJHS
Yes.
yes
Usually it means Lights & Sirens.
it means there is no accident happening...yet
you put your foot on the gas petal slightly more than you would when your driving a car or truck then you put your lights on and go to the area you need.
Switzerland's flag it's colour was red background and white plus and it was the first socity who made red colour .
Red
Gold