diff --git a/libgimpbase/gimpprotocol.h b/libgimpbase/gimpprotocol.h
index 782105e0e1..1e8078fd89 100644
--- a/libgimpbase/gimpprotocol.h
+++ b/libgimpbase/gimpprotocol.h
@@ -317,7 +317,6 @@ struct _GPParam
     GBytes                *d_bytes;
     GPParamColor           d_gegl_color;
     GPParamColorArray      d_color_array;
-    GimpRGB                d_color;
     GimpParasite           d_parasite;
     GPParamArray           d_array;
     GPParamIDArray         d_id_array;
diff --git a/libgimpconfig/gimpconfig-deserialize.c b/libgimpconfig/gimpconfig-deserialize.c
index cea24ec426..9c87210843 100644
--- a/libgimpconfig/gimpconfig-deserialize.c
+++ b/libgimpconfig/gimpconfig-deserialize.c
@@ -74,9 +74,6 @@ static GTokenType  gimp_config_deserialize_memsize        (GValue     *value,
 static GTokenType  gimp_config_deserialize_path           (GValue     *value,
                                                            GParamSpec *prop_spec,
                                                            GScanner   *scanner);
-static GTokenType  gimp_config_deserialize_rgb            (GValue     *value,
-                                                           GParamSpec *prop_spec,
-                                                           GScanner   *scanner);
 static GTokenType  gimp_config_deserialize_matrix2        (GValue     *value,
                                                            GParamSpec *prop_spec,
                                                            GScanner   *scanner);
@@ -371,10 +368,6 @@ gimp_config_deserialize_value (GValue     *value,
     {
       return  gimp_config_deserialize_path (value, prop_spec, scanner);
     }
-  else if (prop_spec->value_type == GIMP_TYPE_RGB)
-    {
-      return gimp_config_deserialize_rgb (value, prop_spec, scanner);
-    }
   else if (prop_spec->value_type == GIMP_TYPE_MATRIX2)
     {
       return gimp_config_deserialize_matrix2 (value, prop_spec, scanner);
@@ -715,23 +708,6 @@ gimp_config_deserialize_path (GValue     *value,
   return G_TOKEN_RIGHT_PAREN;
 }
 
-static GTokenType
-gimp_config_deserialize_rgb (GValue     *value,
-                             GParamSpec *prop_spec,
-                             GScanner   *scanner)
-{
-  GeglColor *color = NULL;
-  GimpRGB    rgb;
-
-  if (! gimp_scanner_parse_color (scanner, &color))
-    return G_TOKEN_NONE;
-
-  gegl_color_get_pixel (color, babl_format ("R'G'B'A double"), &rgb);
-  g_value_set_boxed (value, &rgb);
-
-  return G_TOKEN_RIGHT_PAREN;
-}
-
 static GTokenType
 gimp_config_deserialize_matrix2 (GValue     *value,
                                  GParamSpec *prop_spec,