nav.navbar .nav-link {
  color: #ffffff; /* por defecto sobre fondos oscuros */
  transition: color .15s ease;
}

nav.navbar .nav-link.active,
nav.navbar .nav-item.active > .nav-link,
nav.navbar .nav-item.current-menu-item > .nav-link {
  color: #cccccc !important; /* gris claro en fondo oscuro */
}

nav.navbar.header-on-white .nav-link {
  color: #000000 !important; /* negro sobre blanco */
}

nav.navbar.header-on-white .nav-link:hover {
  color: #111111 !important;
}

nav.navbar.header-on-white .nav-link.active,
nav.navbar.header-on-white .nav-item.active > .nav-link,
nav.navbar.header-on-white .nav-item.current-menu-item > .nav-link {
  color: #777777 !important; /* gris del seleccionado (ajusta si quieres otro) */
}

nav.navbar.header-on-white .nav-link.active:link,
nav.navbar.header-on-white .nav-link.active:visited,
nav.navbar.header-on-white .nav-link.active:hover,
nav.navbar.header-on-white .nav-link.active:focus {
  color: #777777 !important;
}