While assigned to the nuclear delivery role, the Victor was finished in an all-over anti-flash white colour scheme, designed to protect the aircraft against the damaging effects of a nuclear detonation. The white colour scheme was intended to reflect heat away from the aircraft; paler variations of RAF's roundels were also applied for this same reason. When the V-bombers were assigned to the low-level approach profile in the 1960s, the Victors were soon repainted in green/grey tactical camouflage to reduce visibility to ground observation; the same scheme was applied to subsequently converted tanker aircraft.