HTK-C017 - Dark Green (RLM71) - Used for upper surfaces in "two-green" splinter scheme and on day fighters during the Battle of Britain
HTK-C023 - Grey (RLM02) - Used for upper surfaces of day fighters during the Battle of Britain. Also for mottling / spray over camouflage
HTK-C029 - Light Blue (RLM65) - Standard colour of lower surfaces in early WW2 period. From late 1939 raised to fuselage sides of day fighters