if it is a later war Zero then Tamiya Dark Green, Blue Black which isn't available in most brands but you can mix with like 90% black and 10% blue, or maybe 80 to 20 just see what you like with what you are painting with... Cockpit color for a later war Zero would either be darker green or RAF Interior green with a drop of black in it. Propellor color would be tamiya brown...
which model zero are you building? A6M2 model 22 , A6M5 etc... it would give us a better way to see which paints might match better.
there's a lot of paint research on www.j-aircraft.com and it will help you hit the colors exact!!!!
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this may help, read the thread... especially about US interior green with a bit of white added...
http://www.j-aircraft.com/faq/interior_colors.htm