Can't find where a color is showing up on stylesheet?

My clients decided they wanted to change the color scheme on our site, and I've been hunting around and around for one last color to change, but I can't find it!

It's only showing up at the bottom of some of my subcat pages, not all, the top half is an image... it's very strange. I've checked through all my stylesheets and tried to use Firebug with no success.

Can someone take a look at the particular page? The color I need to change is #F4F3E4 and the page is at: http://tinyurl.com/qukhsa

Thanks!
KismetDesign

Looks like it may have been hard-coded...

                            <td valign="top" style=" background:#F4F3E4; border:6px solid #FFFFFF;">

Use admin>>>tools>>>developers tool kit

and in the last input field, put F4F3E4
... choose Catalog from the next dropdown, and then search for the file(s).