Changing the heading background color on two pages only?

Site URL: https://www.yourestheticianbff.com/

Hi there! I'm looking to change the background color of the heading on two pages - is that possible? I'm looking at doing this to the blog and contact pages.

https://www.yourestheticianbff.com/blog

https://www.yourestheticianbff.com/contact

Thanks in advance!

Add to Design > Custom CSS

/* change header color */
body#collection-6317d627c90e6d273712a626, body[class*="type-blog"] {
header#header {
    background-color: red !important;
}}