I would try to come up with a combination of ‘corporate’ and ‘fitness’. Maybe slacks and dress shoes but a sporty top and a jacket that is less formal than a suit jacket but not ‘flower power’. Some jewelry, but nothing ‘loud’. Very little perfume.
It also depends on the corporation you are interviewing for. An accounting or law firm – more conservative. A company where everybody shows up in jeans and t-shirts – more casual. You want to demonstrate that you will ‘fit in’.
I wish you good luck.