[lummerz]

That's the same question that I asked a while back. The sales assistant told me that the colour on your cheek should be roughly in the same range as your lips. so, if you wear peachy cheek colour..you should should wear..I assume..either light pinks...or a nice soft peachy lipstick..i don't necessarily think a bright orange lipstick or anything.
I think the brightness of the lipstick also matters and not just the colour...
For example, you don't want to wear bright pink with peachy cheek colour...but soft hues can compliment each other ...even if they are not the exact same colour in the pot or tube.

I hope this helps or at least pull you in the right direction.