What colors are best for women’s business suits? It depends on what impression you are trying to make. Lighter colors are often said to be more approachable, but darker colors give more of an impression of strength and authority. The main power colors are traditionally navy and black. Here is an example of two sharp looking navy pant suits for women. One suit is accessorized with a gray choker necklace, the ohter is worn plain with a basic white blouse. Both of these business outfits gives an unmistakable professional look. The navy business suit should be a mainstay in the closet of a woman who has to wear professional attire.