Magento Color Attribute Swatches Implementation

filter.phtml

<ol>
<?php foreach ($this->getItems() as $_item): ?>
    <li>
        <?php if ($_item->getCount() > 0): ?>
            // Add attribute option image before label
          <?php if($_item->getName() == "Color") : ?>
                <img src="<?php echo Mage::helper('attributeoptionimage')->getAttributeOptionImage($_item->getValue()); ?>" alt="" />
            <?php endif; ?>
            <a href="<?php echo $this->urlEscape($_item->getUrl()) ?>"><?php echo $_item->getLabel() ?></a>
        <?php else: echo $_item->getLabel() ?>
        <?php endif; ?>
        (<?php echo $_item->getCount() ?>)
    </li>
<?php endforeach ?>
</ol>