Android action bar custom color in styles

I've tried to change the color of the action bar in 100 ways, but it's still the same. Here is my code:

<resources>

<!-- Base application theme. -->

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="android:statusBarColor">#00B0FF</item>
    <item name="android:actionBarStyle">@style/MyActionBar</item>
</style>

<style name="MyActionBar" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
    <item name="android:background">#ffffff</item>
</style>

Can someone explain me where is my mistake?