Hi there,
Can you try to apply customs css code below on your customs.css files and see how it goes
#es .es-login-box__msg {
color: #e60a0a !important;
}
#es .es-login-box__links > a {
color: #e41111 !important;
}
#es .es-login-box__links {
color: #e91010 !important;
}