I totally get the reluctance to 'settle' for a boring navy, grey or black suit, but do consider the risk of being inappropriately-dressed. A suit can be inappropriate for a serious medical school interview if it is:
- Too feminine, pretty, dressy (think evening). Suites that are very light in color or made from silk or shiny fabrics run this risk. If you could wear it to cocktails after work, then it's probably wrong. If it's good for 'ladies who lunch' (think political wives) it's wrong.
- Too cute, frilly or fashionable. You are interviewing for a very serious, high-stakes profession. Look serious. They don't care whether you're pretty or look skinny or are in fashion or not; they do care if you're dressed professionally.
- Too fitted. If a female lawyer on TV wears it, it's 2 or 3 sizes too tight and probably a few inches too short. Do not call attention to your body.
- Too 'out there'. No studs, leather, rhinestones, skulls, wildly asymmetrical cuts. You're applying for medicine, not Madison Ave. Fashion creativity will backfire on you here.
For inspiration, look to female politicians. (Not political wives - too feminine.) Serious news anchors used to be good role models, but not anymore. Much as I disliked her politics, Sarah Palin absolutely nailed the dress code while campaigning for VP. Hillary Clinton also gets it right.
Want color? You can absolutely go red, emerald (or darker) green, any shade of blue darker than a Tiffany box, browns that are tan or darker, many plums or purples if the cut is conservative. And blouses offer a LOT of color options, particularly in solid colors.
If you absolutely need to do something original funky, wild and memorable, a scarf or pin is the way to do it.
The downside of being inappropriately dressed is so much greater than the downside of buying a suit you don't love.