Gray is a versatile color. So, you'll find hundreds, if not thousands of shades on the market. Still, its different tones can lead to markedly diverse end results. Used wrongly, especially in a shower with little to no color or soft texture, it will make your space look stark. To choose the perfect tone that will suit your powder room, consider the amount of light in the room. Also, pick the tone that complements your fixtures. If you have an East or North facing powder room, the chances are that your space will lack natural light. For this reason, you might want to pick a warmer ashen undertone. On the other hand, if your room has a good amount of light, a colder tone might fit it well. Be sure to test as many undertones as possible to make the right pick.