This is the fifth day in a row that I've worn a neutral t-shirt (black, white, or grey). I do laundry almost every day, since I have two little kids. So far these Everlane shirts are holding up just fine to frequent laundering.
None of those three colors is in my seasonal color analysis palette (Autumn), but I like how I look in them, so I'm not going to stop wearing them. I'll keep experimenting with "my" colors and see if I do prefer off-white; then I'll buy that color if I replace my white t-shirt. If I start to love dark brown as much as black, I'll be on the lookout for it as my black clothes get worn out. I'm sure the change will be gradual, as I become convinced that my recommended colors really are more flattering.