Yea you can do 1 of 2 things first is with css and other is without
<html>
<head>
<style type="text/css">
a:link {color: yourcolor;}
a:active {color: yourcolor;}
a:visited {color: yourcolor;}
a:hover {color: yourcolor;}
</style>
</head>
rest of html or php
no without css
<html>
<head>
</head>
<body link="yourcolor" vlink="yourcolor" alink= "yourcolor">
rest of html
remember you can echo this out in php