diff --git a/source/detail/linux_X11/platform_spec.cpp b/source/detail/linux_X11/platform_spec.cpp
index 7501158d..0765b46c 100644
--- a/source/detail/linux_X11/platform_spec.cpp
+++ b/source/detail/linux_X11/platform_spec.cpp
@@ -304,12 +304,12 @@ namespace detail
 
 	void drawable_impl_type::set_color(const ::nana::color& clr)
 	{
-		color_ = clr.px_color().value;
+		color_ = (clr.px_color().value & 0xFFFFFF);
 	}
 
 	void drawable_impl_type::set_text_color(const ::nana::color& clr)
 	{
-		text_color_ = clr.px_color().value;
+		text_color_ = (clr.px_color().value & 0xFFFFFF);
 		update_text_color();
 	}
 
diff --git a/source/detail/win32/platform_spec.cpp b/source/detail/win32/platform_spec.cpp
index cb064545..dcc22037 100644
--- a/source/detail/win32/platform_spec.cpp
+++ b/source/detail/win32/platform_spec.cpp
@@ -65,12 +65,12 @@ namespace detail
 
 	void drawable_impl_type::set_color(const ::nana::color& clr)
 	{
-		color_ = clr.px_color().value;
+		color_ = (clr.px_color().value & 0xFFFFFF);
 	}
 
 	void drawable_impl_type::set_text_color(const ::nana::color& clr)
 	{
-		auto rgb = clr.px_color().value;
+		auto rgb = (clr.px_color().value & 0xFFFFFF);
 		if (text_color_ != rgb)
 		{
 			::SetTextColor(context, NANA_RGB(rgb));