HYGIENIC, COMFORTABLE, EVEN FETCHING—all are necessary traits of modern scrubs, which must not only neutralize white light and make blood and tissue stand out in operating rooms but must also look good on TV (which is why sky blue is the hue of choice for medical training videos and prime-time hospital dramas). While other standards like misty green and magenta may indicate the wearer’s role, department or even size, the psychedelic prints worn by some staffers mark them merely as…colorful.