That's what we went for ... coordinating but not matching. It seemed to appease everybody. We had specific colored days... one was blue, one was red and green, one was black and grey (though apparently DS14 thought this meant navy blue... which I didn't find out until later in the day when he took his hoodie off for family pics). The last day was a "wear whatever you want" day, which ended up with most people in a park shirt of some kind that they'd purchased on the trip. So it worked for us and no one had to wear "matching" clothes.