Color difference

by Emre Erkan

HTML

<div id="green-1">

</div>
<div id="green-2">

</div>

<div id="green-3">

</div>

CSS

div {
  width: 200px;
  height: 200px;
  display: inline-block;
  margin: 10px;
  border: 1px solid black;
}
#green-1 {
  background: #006B4110;
}
#green-2 {
  background: rgba(0, 107, 65, .1);
}
#green-3 {
  background: #006B411A;
}