Gray may not be the most happy of colors, but it is a part of your neutral palette.
From charcoal to silver, gray garments can be worked in to soften your wardrobe. If you have dark hair and light skin, gray can be a better option than black for a softer look.
Gray is a cool color, so if you look better in warm colors, you probably should avoid it. When I wear gray, I choose darker charcoals and smoky colors due to my warm complexion.
This classy woman wore her neutrals and colors with impeccable taste.