Blog Page Formatting with Site Logo- How do I make sure I do not lose the logo #2

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

password for the site is: rad

On the blog pages I want the background white- but I lose the white logo- is there a way to make the logo a different color against white pages or add in a section above the blog post that is a different color so I don't loose the white logo?

I tried an invert code but it didn't work and I don't necessarily want it black - any ideas? Would it be possibleto make it one of the colors of the site #495A58 which is the file that I have uploaded which is the logo in that color (called 1.png in custom css) 

I remember I answered this on another post. You can check again.

use this CSS

body.collection-type-blog-side-by-side .header-title-logo img {
    filter: invert(1);
    -webkit-filter: invert(1);
}