Disabled button text colour

Hi is it possible to set textcolour of a disabled button?

Here it is code
<Button HorizontalOptions="EndAndExpand" Text="Sign In" x:Name="btnLogin" Command="{Binding LoginButton}" BackgroundColor="Lime" TextColor="Red" HeightRequest="40" WidthRequest="100" IsEnabled="False">
but when I run my app Text color is grey