<?php
$mainId=$post->ID;
$args = array( 'showposts' => 5, 'meta_key' => 'post_views', 'orderby' => 'meta_value_num', 'order' => 'DESC', 'post__not_in' => array($post->ID), );
query_posts($args);

while ( have_posts() ) : the_post();
?>

<div id="projectThumbs">
    <div class="wrapper"> <a class="project">
        <div class="intrinsic" style=""></div>
      </a> 
    </div>
</div>

.intrinsic {
    background-color: #2A3139;
    box-shadow: none;
    width: 200px;
    height:200px
}

var randomLinks = $('#projectThumbs .intrinsic');
var original = randomLinks.css('background-color');
var colors = ['#f9c213', '#f35c4a', '#3da1bf', '#827287'];

randomLinks.hover(function () { //mouseover
    var col2 = Math.floor(Math.random() * colors.length);
    var newcolor = '' + colors[col2];
    $(this).css('background-color', newcolor);
}, function () { //mouseout
    $(this).css('background-color', newcolor);
});