As the others have said, depending on the company, the season and the type of role, I would always dress a bit more conservatively - a dark coloured skirt or pants suit with a collared shirt and jacket. However if it is hot/tropical then a short sleeved shirt with no jacket or a simple capped-sleeve dress is also suitable. Low heels with enclosed toes are preferable and some nice jewllery ie. a necklace and earrings. Keep makeup fresh and minimal and make sure your nails are nuetral coloured or at least the nailpolish isn't chipped.

The general rule is to dress to the company (so find out what they are like culture wise) and then make it slightly more conservative.