Montclair, New Jersey
Never ... you can actually accentuate your STEM background with minors in the arts & humanities.
Think of a web designer ... sure, a designer needs strong computer (STEM) skills, but if he/she is well-versed on the aesthetics of design which one would pick up in the arts & humanities world, a true impression can be made.
Think of Steve Jobs and the apple products. Per his biography, he had actually taken arts classes which influenced his desire for a clean design.