This was a problem for me as well couldn't figure it out. Finally found a way via a different Stackoverflow post.
appcompat-v7 v23.0.0 statusbar color black when in ActionMode
Here is what worked for me
<color name="abc_decor_view_status_guard" tools:override="true">@color/colorAccent</color>
<color name="abc_decor_view_status_guard_light" tools:override="true">@color/colorAccent</color>