This colors are set with custom css

Adapt below css to your needs and edit or add in theme options – design – custom colors – custom css

.header_type3_menu_sidebar {
background-color: #FF3B3D;
}

.header_type3_menu_sidebar #access ul.menu>li>a, .header_type3_menu_sidebar #access .menu>li>a i {
color: #ffffff;
}