diff --git a/gdk/gdkrgba.c b/gdk/gdkrgba.c
index 02254929c4..81eed32492 100644
--- a/gdk/gdkrgba.c
+++ b/gdk/gdkrgba.c
@@ -642,7 +642,7 @@ gdk_rgba_parser_parse (GtkCssParser *parser,
     {
       if (gtk_css_token_is_ident (token, "transparent"))
         {
-          *rgba = (GdkRGBA) { 0, 0, 0, 0 };
+          *rgba = GDK_RGBA_TRANSPARENT;
         }
       else if (gdk_rgba_parse (rgba, gtk_css_token_get_string (token)))
         {
diff --git a/gdk/gdkrgbaprivate.h b/gdk/gdkrgbaprivate.h
index b37e1f3ad9..12b56fdc2d 100644
--- a/gdk/gdkrgbaprivate.h
+++ b/gdk/gdkrgbaprivate.h
@@ -34,6 +34,11 @@
     ((_GDK_RGBA_SELECT_COLOR(str, 2, 4) << 4) | _GDK_RGBA_SELECT_COLOR(str, 2, 5)) / 255., \
     ((sizeof(str) % 4 == 1) ? ((_GDK_RGBA_SELECT_COLOR(str, 3, 6) << 4) | _GDK_RGBA_SELECT_COLOR(str, 3, 7)) : 0xFF) / 255. })
 
+#define GDK_RGBA_INIT_ALPHA(rgba,opacity) ((GdkRGBA) { (rgba)->red, (rgba)->green, (rgba)->blue, (rgba)->alpha * (opacity) })
+
+#define GDK_RGBA_TRANSPARENT ((GdkRGBA) { 0, 0, 0, 0 })
+#define GDK_RGBA_BLACK ((GdkRGBA) { 0, 0, 0, 1 })
+#define GDK_RGBA_WHITE ((GdkRGBA) { 1, 1, 1, 1 })
 
 gboolean               gdk_rgba_parser_parse                    (GtkCssParser           *parser,
                                                                  GdkRGBA                *rgba);
diff --git a/gsk/gpu/gskgpunodeprocessor.c b/gsk/gpu/gskgpunodeprocessor.c
index 5ad6418f24..48ab6ff59d 100644
--- a/gsk/gpu/gskgpunodeprocessor.c
+++ b/gsk/gpu/gskgpunodeprocessor.c
@@ -32,6 +32,8 @@
 #include "gskroundedrectprivate.h"
 #include "gsktransformprivate.h"
 
+#include "gdk/gdkrgbaprivate.h"
+
 /* A note about coordinate systems
  *
  * The rendering code keeps track of multiple coordinate systems to optimize rendering as
@@ -889,7 +891,7 @@ gsk_gpu_node_processor_blur_op (GskGpuNodeProcessor       *self,
                    &other.offset,
                    source_rect,
                    &direction,
-                   &(GdkRGBA) { 0, 0, 0, 0 });
+                   &GDK_RGBA_TRANSPARENT);
 
   gsk_gpu_render_pass_end_op (other.frame,
                               intermediate,
@@ -909,7 +911,7 @@ gsk_gpu_node_processor_blur_op (GskGpuNodeProcessor       *self,
                    &real_offset,
                    &intermediate_rect,
                    &direction,
-                   blur_color_or_null ? blur_color_or_null : &(GdkRGBA) { 0, 0, 0, 0 });
+                   blur_color_or_null ? blur_color_or_null : &GDK_RGBA_TRANSPARENT);
 
   g_object_unref (intermediate);
 }
@@ -1307,7 +1309,7 @@ gsk_gpu_node_processor_add_rounded_clip_node (GskGpuNodeProcessor *self,
                                 gsk_gpu_clip_get_shader_clip (&self->clip, &self->offset, &original_clip->bounds),
                                 original_clip,
                                 &self->offset,
-                                &(GdkRGBA) { rgba->red, rgba->green, rgba->blue, rgba->alpha * self->opacity });
+                                &GDK_RGBA_INIT_ALPHA (rgba, self->opacity));
       return;
     }
 
@@ -1682,7 +1684,7 @@ gsk_gpu_node_processor_add_color_node (GskGpuNodeProcessor *self,
                     gsk_gpu_clip_get_shader_clip (&self->clip, &self->offset, &node->bounds),
                     &node->bounds,
                     &self->offset,
-                    &(GdkRGBA) { color->red, color->green, color->blue, color->alpha * self->opacity });
+                    &GDK_RGBA_INIT_ALPHA (color, self->opacity));
 }
 
 static gboolean
@@ -2735,7 +2737,7 @@ gsk_gpu_node_processor_create_repeat_pattern (GskGpuPatternWriter *self,
   if (gsk_rect_is_empty (child_bounds))
     {
       gsk_gpu_pattern_writer_append_uint (self, GSK_GPU_PATTERN_COLOR);
-      gsk_gpu_pattern_writer_append_rgba (self, &(GdkRGBA) { 0, 0, 0, 0 });
+      gsk_gpu_pattern_writer_append_rgba (self, &GDK_RGBA_TRANSPARENT);
       return TRUE;
     }
 
@@ -2805,7 +2807,7 @@ gsk_gpu_node_processor_add_subsurface_node (GskGpuNodeProcessor *self,
         }
       gsk_gpu_clear_op (self->frame,
                         &int_rect,
-                        &(GdkRGBA) { 0, 0, 0, 0 });
+                        &GDK_RGBA_TRANSPARENT);
     }
 }
 
@@ -3129,7 +3131,7 @@ gsk_gpu_node_processor_create_node_pattern (GskGpuPatternWriter *self,
   if (image == NULL)
     {
       gsk_gpu_pattern_writer_append_uint (self, GSK_GPU_PATTERN_COLOR);
-      gsk_gpu_pattern_writer_append_rgba (self, &(GdkRGBA) { 0, 0, 0, 0 });
+      gsk_gpu_pattern_writer_append_rgba (self, &GDK_RGBA_TRANSPARENT);
       return TRUE;
     }