Hi K.!
The SAME EXACT THING happened to me many times! Our guest hand towels in the guest bathroom always looked dirty, right out of the dryer! I always used white or off white towels. I could never understand it until recently. I'm not positive, but my theory is this - the guest hand towels get used so much, that everyone is drying off their hands so much on the hand towels, and a lot of time, they are drying their hands on the same section of the towel, causing "wear and tear" so to speak (although the towel isn't tearing, just getting dirty from all of the constant use). It's not because peoples' hands are literally dirty, but the hands are rubbing on the towels in the same spot, causing it to look dirty. That is my theory. So, I stopped buying light colored towels. For many months, I have had the same hand towel in my guest bathroom, and it is BROWN, and it has worked! It still looks good! michelle