please got to ‘Appearance > Customize > Additional CSS’ and paste the below Custom CSS code.
.site-content .newscard-widget-recent-posts .nav-link {
color: black;
}
.site-content .newscard-widget-recent-posts .nav-link:hover,
.site-content .newscard-widget-recent-posts .nav-link.active {
color: blue;
}
Please change the above color to your desired one. For the above code ‘Black’ is used for inactive state and ‘Blue’ is used for active and hover state. If you know the Color Name then you can use the Color Name or you can use the hex color like #000000, #2e5f97 etc.