If you are extends material design api 21 => take a look
<resources>
    <!-- inherit from the material theme -->
    <style name="AppTheme" parent="android:Theme.Material">
      <!-- Main theme colors -->
      <!--   your app branding color for the app bar -->
      <item name="android:colorPrimary">@color/primary</item>
      <!--   darker variant for the status bar and contextual app bars -->
      <item name="android:colorPrimaryDark">@color/primary_dark</item>
      <!--   theme UI controls like checkboxes and text fields -->
      <item name="android:colorAccent">@color/accent</item>
    </style>
</resources>
But if you are extends AppCompat => take a look
<resources>
    <!-- inherit from App Compat theme -->
    <style name="AppTheme" parent="Theme.AppCompat.Light"">
      <!-- Main theme colors -->
      <!--   your app branding color for the app bar -->
      <item name="colorPrimary">@color/primary</item>
      <!--   darker variant for the status bar and contextual app bars -->
      <item name="colorPrimaryDark">@color/primary_dark</item>
      <!--   theme UI controls like checkboxes and text fields -->
      <item name="colorAccent">@color/accent</item>
    </style>
</resources>
We now use the support implementation of Toolbar/ActionBar on all platforms meaning that we no longer read any android: attributes related to the action bar. Chris Banes