Most of the Jets Of Indian Air Force are grey in color.The reason why Indian Air Force Planes are Grey in Colour are because:- 1. Visual Camaouflage Minimizing visual signature of the aircraft. Aircrafts can be Easily Camouflaged with Grey Colour.Aircrafts with Grey Colour can easily hide in Clouds.Aircraft operating over sea can be camouflaged by painting them blue-grey. This scheme was first adopted by Britain during the World War 1 where undersides of day fighters and bombers were painted a grey-sky color to reduce chances of detection 2. Not GetDetected By RADAR Indian Air Force Jets are painted Grey