Change background color for lightning:tab

Question

How can I set background color for selected tab in lightning:tabset

<lightning:tabset>
    <lightning:tab label="Item One">
        Sample Content One
    </lightning:tab>
    <lightning:tab label="Item Two">
        Sample Content Two
    </lightning:tab>
</lightning:tabset>

Thanks in advance.

Answer 1

You can use the following CSS in your component

.THIS slds-tabs--default__nav li.slds-active{
     background: red;
}

Adjust as needed

Answer 2

Try Add this following In css

.THIS .slds-tabs--default__item.slds-active{
     background: blue;
}

Answer 3

Adding the CSS below worked for me:

.THIS .slds-tabs_default__item.slds-is-active {
    background: greenyellow !important;
}