Color was very good from the X500 at or below ISO 200. Above that, colors get washed out and dull looking. Again, though,
when viewed at full size you will see some color noise even at ISO 80 (and a general lack of fine detail, too). White balance outside is solid, but indoors both the auto and presets were off. There is a manual option that's easy to set, and I recommend using that whenever possible under unnatural light.