But although I’ve found the hex color in the page code, changing it to a blue color, just makes the bg color white, which makes me think there’s a conflict somewhere else.
Thanks for writing in! It seems you have set the background color (#e74c3c) to #x-content-band-2. Kindly remove the background color or change it to different one.
To change the list color, you can add this under Custom > CSS in the Customizer.
.page-id-6689 #x-content-band-2 li {
color: #fff;
}