When we started, we went for whites... White bedding sheets, white towels, face clothes & on & on just like you find in hotels.
After my first turn over; I had to discard 3 face clothes, 1 bath towel, 1 hand towel & 1 pillow case due to various stains...
We have since introduced grey face clothes, beige bath towels in tbe bathroom & hand towels & blue bath towels for the hot tub. Sheets are still white though.
Hindsight 20-20... You can't manage every little "what if" but you can mitigate most!
So far, my guests have been very good. No damage to the premises & excellent reviews from them so a few towels put aside is not that big a deal.
Cheers from Nova Scotia