Small html validation issue

Hi, I think this must be a small error in the theme code where it sets the color for the .site-title. When I run the site through the html validator, I get an error for the color that is set on that class. You can see the error in the html here:

<style type=’text/css’>
.site-title a,.site-title a:visited{color:ffffff;}
</style>

There should be a # in front of the f’s. Is this a mistake in the theme or a mistake of mine?

Thanks very much for your time.