Right
Here's all my CSS for the top header and header area ... take your pick which ones you want ... edit the colours.
Just paste the whole lot into Appearance>Customize>Additional CSS ... and see what it looks like and delete the bits you don't want. (You can see the changes on the right as you delete them.
.breadcrumbs a, .top-header ul li a {
color: #000000!important;
}
.header .cart {
border-color: #ffffff!important;
}
.header, .header .shipping, .header .tbtn, .top-header {
background: #ffffff!important;
border-color: #ffffff!important;
}
.top-header {
background: #000000!important;
}
.header, .header .shipping, .header .tbtn, .top-header {
border-color: #000000;
}
.top-header ul li a {
color: #ffffff; }
.breadcrumbs a, .top-header ul li a {
color: #ccc!important;
}
.top-header__mail, .top-header__phone {
color: #ccc;
}
.search-form .btn-danger {
border-radius: 3px!important;
background: #005e8e!important;
color: #ffffff!important;
border-color: #005e8e!important;
}
.search-form .btn-danger:hover {
border-radius: 3px!important;
background-color: #595959!important;
border-color: #595959!important
}