Changing link color

start by looking in the theme’s css file.

This should get you started…
https://www.tutorialhero.com/tutorial-55-how_to_style_links_with_css.php

If you have a div surrounding your entries like <div class="entry"> or something, make note that you can style just those links by limiting the CSS like so where “entry” is the class of the div around your posts (found in index.php, page.php, etc):

.entry a {
}