CSS Grays

HTML

<div class="gray">
  gray
</div>
<div class="darkgray">
  darkgray
</div>

CSS

div {
  font-size: 2rem;
  padding: 4rem;
  text-align: center;
}

.gray {
  background-color: gray;
}

.darkgray {
  background-color: darkgray;
}