<!DOCTYPE html>
<html>
<head>
    <title>CSS Filter Test: Test for Saturate short hand</title>
    <style type="text/css">
    div {
        width: 600px;
        height: 600px; 
        background: rgb(24, 21, 144);
    }

    </style>
</head>
<body> 
    <p>You should see a green rectangle.</p>
    <div></div>

</body>
</html>