CSS Colors

<!DOCTYPE html>
<html>
<head>
    <style>
        .kartu-transparan {
            background-color: rgba(13, 46, 92, 0.15);
            border: 2px solid rgba(13, 46, 92, 0.4);
            color: #0d2e5c;
            padding: 20px;
            border-radius: 8px;
            font-family: sans-serif;
        }
    </style>
</head>
<body>
    <div class="kartu-transparan">
        <h4>Warna RGBA Transparan</h4>
        <p>rgba(13, 46, 92, 0.15) menghasilkan latar belakang biru transparan lembut.</p>
    </div>
</body>
</html>