In your Child Theme or CSS Editor Plugin try this code:
.blog-header {
background-color: #990066;
}
*Note
If your theme has a custom CSS Editor in it, you can also paste the code in there.
Never edit core CSS or PHP files, they’ll be deleted when the theme is updated.
Thank you for the help!
I wasn’t able to use that code in my CSS Editor but I was able to use the following:
.fixed-menu {
background-color: #990066;
}