.btn-default.active, .open > .dropdown-toggle.btn-default {
    color: #fff;
    background-color: mediumblue;
    border-color: mediumblue;
}

.btn-default:active:hover,
.btn-default.active:hover,
.open > .dropdown-toggle.btn-default:hover,
.btn-default:active:focus,
.btn-default.active:focus,
.open > .dropdown-toggle.btn-default:focus,
.btn-default:active.focus,
.btn-default.active.focus,
.open > .dropdown-toggle.btn-default.focus {
    color: #fff;
    background-color: mediumblue;
    border-color: mediumblue;
}