Changing link color

Hi as you have not mentioned which link color you want to change. So please go to wp-admin >> appearance >> Customize and check all panels carefully, Specially General Settings >> Colors. If you want to change top menu colors go to Appearance >> customize >> header and change colors. Every section have its own color options. After general colors settings you can check each section's colors. 

I want to change the color of the link, hover, active and visited text on the pages and posts, not the navigation. I can find no setting in Appearance > Customize that allows me to set those colors.

Hi go to Appearance >> customize >> additional CSS and add the following CSS

That will provide you help about changing colors for Unvisited link, Mouse over link, Visited link, hover link thanks. If this still do not work please include !important after colors like

color: #FFF !important; 

/* unvisited link */
a:link {
    color: #cc0;
}

/* visited link */
a:visited {
    color: #00f;
}

/* mouse over link */
a:hover {
    color: #000;
}

/* selected link */
a:active {
    color: #000;
}