How to change a header on individual pages (blog) and not affect globally

I need some help on workarounds to modify the header on individual blog pages.

Our linked logo which is placed in the middle of each page of the website is colored white so it's not displaying on blog pages which are white. What options would we have to modify the logo on the blog pages only? Thank you in advance. 

The blog pages in question are the two screenshots (e.g. 10 States, Spaceports).

 

This thread has a tutorial (need to register to see it) along with some code. I suggest you read the whole thread to determine the best way to accomplish what you want to do.