.navbar-inverse {
   background-color: #83518B;
    }
    
.dropdown {
   background-color: #83518B;
    }

.open {
   background-color: #83518B;
    }
    
.navbar-inverse .navbar-nav > .open > a, .navbar-inverse .navbar-nav > .open > a:focus, .navbar-inverse .navbar-nav > .open > a:hover {
 background-color: #83518B;
}