5-114.3, (5x4.5") our TSX is a +55mm offset and since the '06 uses the TL-S rim on the 6-speed I know that was a+55mm rim. So I think it would be safe to assume the Accord is also a +55mm offset.
However, the TL for '04+ is a +45mm if I recall, but the Accord is likely +55mm since it and the TSX share the same optional rims...