No dress code, but they frown upon wearing crop tops and such to class. Clients are now allowed back into the teaching hospital and sometimes meander over to the commons due to Space Rabbit Coffee, so don't look like a homeless person. I generally wore leggings and a sweater during the didactic years.
Historically each class has had a designated scrub color that you vote on, but they haven't been enforcing it in the teaching hospital. Maybe they'll go away from the specific color entirely eventually? More importantly we have a clinician's jacket color, which for my class is grey. Generally the first years take on the jacket color of the fourth years and buy hand-me-down jackets.