Restrict colors in Tinymce font color plugin

Hi,

So i have done below code to display toolbars and plugins in tinymce editor, recently i added font color and font background color toolbar as well and i can see it in editor but i want to restrict the colors which come under that.

public void ConfigureContainer(ServiceConfigurationContext context)
{
               context.Services.Configure<TinyMceConfiguration>(config =>
               {

                      var DefaultTinyMceSettings = config.Default().AddPlugin(ToolbarButtons.EpiLink + "" + ToolbarButtons.Anchor + "" + ToolbarButtons.Image + "textcolor colorpicker")
                      .Toolbar(ToolbarButtons.EpiLink + "" + ToolbarButtons.Anchor + "" + ToolbarButtons.Image                                             , "forecolor backcolor");

               }

}

I saw on Tinymce documentation https://www.tiny.cloud/docs/configure/content-appearance/#custom_colors and it says it has color_map property to restrict the colors but im not sure how we will do that here as there code is based on js.