A lesson I learned, just today.
I can't help you with the color of the wires, but after getting it wired properly you want to test it.
To test the air conditioner, TURN THE 110V POWER BACK ON!
I replaced my thermostat today. (Exact same thermostat so wire colors matched.) I tested the furnace first, worked fine. Then I turned it to A/C. WOULD NOT WORK. FAN WOULD NOT EVEN COME ON! I pulled it back off the wall and went for some test equipment. As I was walking back, I remembered that I had turned off the 110v power before starting!
Duh!