I was having a problem changing the font color of the Page Header Title, it would only show as white.  I found the code you suggested:

body.post-type-archive-product #page-header-bg h1 {
    color: #444444 !important;
}
body.post-type-archive-product #page-header-bg span {
    color: #444444 !important;
}

Which worked but now my product-category pages are doing the same thing, ohly white text:  

http://thesecretsofhappilyeverafter.com/product-category/consulting/

Is there CSS code to fix this?

Thanks!

Yes I figured out the CSS that was making it stay white.  I discovered how to use the "Inspect" feature in web browsers which allowed me to see exactly which code in which style sheet was causing the problem.