<!DOCTYPE html>
<html>
<style>
div {height:50px;width:100%;}
</style>
<body>
<h1>Colors can be set using hexadecimal values</h1>
<div style="background-color:#ff0000"></div>
<div style="background-color:#ffff00"></div>
<div style="background-color:#00ff00"></div>
<div style="background-color:#00ffff"></div>
<div style="background-color:#0000ff"></div>
<h1 style="color:#ff0000">Heading</h1>
<h1 style="color:#ffff00">Heading</h1>
<h1 style="color:#00ff00">Heading</h1>
<h1 style="color:#00ffff">Heading</h1>
<h1 style="color:#0000ff">Heading</h1>
</body>
</html>