Color is excellent from the WX9. While blues and reds may not be as accurate as other colors, they are bright and vivid. Plus, they're consistent up to ISO 800; above that, things get slightly washed out and muddy-looking. Also, when the lens was fully extended, blacks look slightly washed out compared to how they are at the wide end.
Exposure and white balance are good as well, though highlights tend to blow out. The camera has shooting options for helping with those things, though.