Create index.html file and implement as below code in it.
<h2 style="background-color:Tomato;">Tomato</h2> <h2 style="background-color:Orange;">Orange</h2> <h2 style="background-color:DodgerBlue;">DodgerBlue</h2> <h2 style="background-color:MediumSeaGreen;">MediumSeaGreen</h2> <h2 style="background-color:Gray;">Gray</h2> <h2 style="background-color:SlateBlue;">SlateBlue</h2> <h2 style="background-color:Violet;">Violet</h2> <h2 style="background-color:LightGray;">LightGray</h2>
<!DOCTYPE html>
<html>
<head>
<title>How Can I Specified Predefined Colors Names In CSS</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<style>
body {
background: pink;
}
</style>
<body>
<br/><br/>
<div class="container">
<br><br><br>
<div class="text-center">
<h1 id="color" style="color: black;">Specified Predefined Colors Names In CSS</h1>
</div>
<br>
<div class="well">
<h2 style="background-color:Tomato;">Tomato</h2>
<h2 style="background-color:Orange;">Orange</h2>
<h2 style="background-color:DodgerBlue;">DodgerBlue</h2>
<h2 style="background-color:MediumSeaGreen;">MediumSeaGreen</h2>
<h2 style="background-color:Gray;">Gray</h2>
<h2 style="background-color:SlateBlue;">SlateBlue</h2>
<h2 style="background-color:Violet;">Violet</h2>
<h2 style="background-color:LightGray;">LightGray</h2>
</div>
<br>
</div>
</body>
</html>