Interviews are formal and need to be that way but you dont have to necessarily wear boring, drab and uptight outfits to such meetings. You can bring in your individual style quotient even to such formal interviews. The key is to look relaxed yet confident.The best way to go about it is to wear formal classic colors with unconventional detailing. A crepe black shirt with white collar teamed with a crop white jacket with black detailing is not only formal-stylish but speaks volumes about your confidence. Bring in a hint of color in your shoes and bag.