Aircraft camouflage is the use of light and color patterns applied to military aircraft for the purpose of making an aircraft more difficult to see on the ground, in the air, or to make its speed, distance or attitude difficult to determine. Camouflage is highly dependent upon environmental conditions and is primarily effective against human observers, though some electronic visual acquisition systems can also be confused. It does not hinder radar location or heat-seeking electronics although the paints used may contain substances that can.