Hey Seth,
Inspecting your footer it looks as though the class ‘.footer-widgets’ currently has a white background, so the logical thing to do would be to change that to #222222 (the same as your nav bar). You would then need to change the text to a lighter colour, and while most of the text is controlled by the footer-widgets class, the titles are controlled by ‘.footer-widgets .widget-title’.
So, assuming you have a child theme of your WordPress theme in place or are making changes to some kind of additional CSS box your WP theme might offer, or you are just going to add the changes to the end of your themes style.css – You would need to add something like this:
.footer-widgets {
color: #FFFFFF;
background: #222222;
}
.footer-widgets .widget-title {
color: #FFFFFF;
}
For any further help, for example with child themes or where to add these changes it does vary from theme to theme so you would need to contact the theme developer, as Andy has pointed out the WP theme is not something we can really offer the same level of support on as we do for Simple:Press itself.
Hope that helps!