Alternative Logo for Blog Posts?

My logo for my website is white text, which works on the pages that have an image on the header. My problem is that it blends in with the white background when view blog posts because there's no image behind the text. Is there a way to add an alternative logo (a version with black text) to show up but only on blog posts?

Here's an example of what I'm talking about: https://www.tianaoliviaphotography.com/blog/how-to-elope-in-idaho