<!DOCTYPE html>
<html>
<head>
    <style>
        body { font-family: Arial; padding: 20px; background: #f0f4f8; }
        .box { display: inline-block; width: 150px; padding: 20px; margin: 8px; border-radius: 12px; text-align: center; color: white; font-weight: bold; }
        .hex { background: #E84D3D; }
        .rgb { background: rgb(46, 134, 171); }
        .rgba { background: rgba(39, 174, 96, 0.8); }
        .hsl { background: hsl(280, 60%, 45%); }
        .gradient { background: linear-gradient(135deg, #1B3A5C, #2E86AB); }
        .gradient2 { background: linear-gradient(to right, #E84D3D, #D4A533, #27AE60); }
    </style>
</head>
<body>
    <h2>CSS Ranglar</h2>
    <div class="box hex">#E84D3D</div>
    <div class="box rgb">rgb()</div>
    <div class="box rgba">rgba()</div>
    <div class="box hsl">hsl()</div>
    <div class="box gradient">Gradient</div>
    <div class="box gradient2">Gradient 2</div>
</body>
</html>