nathanbs
Omono
It's massive enough that you could get away with an unglazed red/light brown (not gray) clay. However, the light bark and leaf color, and eminent blazing fall colors would also work nicely with a dark blue glaze. I think cream would be tough if it has to be a deep pot; as it might not convey a sense of stability.
Brian I am curious why you say not a grey unglazed pot? Its funny we gave him almost exact opposite advice, or not funny if you are the OP.