Here's a view captured by NASA's Spirit rover's panoramic camera on September 30, 2005 from atop "Husband Hill" in Gusev Crater. This is a colored monochrome image, the faint vertical blur at upper left is a dust devil in the distance. (Spirit saw a few from that vantage point.)

A couple of weeks later, on 15 October 2005, Spirit captured these shots of rocks in an outcrop at the base of Husband Hill called Hillary. These are nice rocks. And they're on Mars.

Those are each color-composites of three panorama camera images captured in wavelengths corresponding closest to red, green, and blue. Attempt has been made to approximate natural ambient coloration on Mars (although the exactness of that is always tricky and subjective.)