Hola que tal
Código PHP:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<title>Title here!</title>
</head>
<body>
<table width="50%" bgcolor="3366cc" height="40">
<tr><td onmouseout='this.style.background="3366cc"' onmouseover='this.style.background="3399ff"'></td><td onmouseout='this.style.background="3366cc"' onmouseover='this.style.background="3399ff"'></td></tr>
</table>
</body>
</html>
Espero haberte entendido y ayudado en algo.
Saludos