Difference between Content and Body in Theme > Customizing > Colors

Hi everyone, I’m trying to get my new site all set up and running into a really annoying issue. I want to use the same color for my primary global button style with the background red and the text white.

I also want to have any links in my blogs show up as the same red color. So I’ve been playing around in the Appearance > Customizing > Colors but I cannot figure how do get this set up properly.

I’ve got it set up like this…

Body > Text Color > Black
Body > Link Color > Red (with orange hover)

Button > Background Color > Red (with orange hover)
Button > Text Color > White

Content > Text Color > Black
Content > Link Color > Red (with orange hover)

The links in my text are working as I want them to but because I’ve got the button set to the same red color, I can’t see the button text when I make it becomes a link (which all my buttons are). So the buttons are just red background with red text.

I don’t really get the difference between Body and Content. Content changes all the links on my sample page and body doesn’t seem to do anything.

Is there anything I can do to overwrite this in the global settings or would it be better for me to just create a separate button style or something?