How to change the link colour inside my blog post

Do you have a link to your site? Once you add that, then I can look at everything and let you know what needs to be adjusted.

You can change the links that show up in your content areas (blog, posts, pages, etc) by adding this to your css –

.epik-darkblue .entry-content a {
 	color: #ff0000;
}

If you want to change ALL links globally throughout your entire site, then you can adjust line 2318 in your style.css –

.entry-content a {
 	color: #ff0000;
}

I used the red color as an example so it will stand out when you look at it to see that it works. You can change this to whatever color you need.