Hi @pablo102,
I just check the back-end settings and if you want to target the title hover of the posts in your posts pages then please the CSS code below, just change the color to your desire color.
.single-post .x-section a:hover article .x-text-content-text-primary {
color: #ff0000 !important;
}
You can choose your hex code color here:
Please note that custom CSS code is outside the scope of our support. Issues that might arise from the use of custom CSS code and further enhancements should be directed to a third-party developer or you can avail One where we can answer questions outside of the features of our theme.
Hope that helps.
Thank you.