CB and OD are great. Ranger Green is also good.
KH or Tan or Coyote Tan or Sand (they are different names for almost same colour anyway) are fine, too.
Black is not that good unless you are going all black gears or almost all black.
The base colour of multicam (like foliage green to UCP camo) is a green colour very close to OD, so OD is fine.
Last edited by ccyg8774; February 4th, 2013 at 18:51..