Changing Colors on Blocks

I found how to change the category on Post pages and on Post Loops. But how do you set the color on Blogs? They are currently showing as Block.

Here is an example.

http://pucblog.wpengine.com/category/all-gods-people/

Thank you.

Hi-

So it is not the Fonts I am issue with, it is the background color of the category background color on Blocks. I am able to change the color when using Post Loop, but not on Blocks.

Here is the page I reviewed. https://forum.tagdiv.com/category-tag-on-modulesblocks/

https://www.dropbox.com/s/oq4x8ky5epat3nz/Screenshot%202020-08-03%2010.19.35.png?dl=0

https://www.dropbox.com/s/9ijtu8yxxelp7jh/Screenshot%202020-08-03%2010.19.26.png?dl=0

Example of one category page
http://pucblog.wpengine.com/category/living-gods-love/

I want to assign colors to each category.

Thanks!