AdminLTE/build/scss/_navs.scss

/*
 * Component: Nav
 * --------------
 */
.nav-pills {
  .nav-link {
    color: $gray-600;

    &:not(.active):hover {
      color: theme-color("primary")
    }
  }
  .nav-item {
    &.dropdown.show {
      .nav-link:hover {
        color: $dropdown-link-active-color;
      }
    }
  }
}