Change the color of Navigation Drawer indicator icon

Try creating this style in your styles.xml.

<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
    <item name="color">@android:color/white</item>
</style>

And, then add it to you AppTheme style like the following.

<item name="drawerArrowStyle">@style/DrawerArrowStyle</item>