<div class="icon">👍🏽</div>

.icon {
  background: cadetblue;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-size: 48px;
}

body {
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}