I would never choose items that ‘don’t show the dirt’. If there’s dirt there, I want to see it. I assume that there are many guests who feel the same way.
We have cream leather sofas (or you could go for faux leather if the real thing bothers you) and all towels, bedding, shower curtains etc. are white. This way guests can be certain that the place is really clean and not just ‘hiding the dirt’.