The first four towels I bought were white, after reading some posts of other hosts I started buying dark grey ones. Best colour ever! I tuck away the white towels for emergnecies, I actually had to use one a couple of weeks ago because of a full house, and it got ruined.
Go with dark grey, I haven't lost one yet.
I have made claims before for little things that were broke, and got the money. I had never made a claim for towels and bedding, but I have made one for this guest for the towel and some brand new bedding (first use) that were ruinned. The guest denied, as I had expected, I am waiting for the review period to end to escalte.