diff --git a/ColorPlugin.cc b/ColorPlugin.cc
index 15682c401704a108026ae74438d96509c1ed661b..06a780312145bbe6dea0e636d8a7eb15957e25bb 100644
--- a/ColorPlugin.cc
+++ b/ColorPlugin.cc
@@ -310,6 +310,57 @@ void ColorPlugin::setObjectEmissiveColor(int _objectId , Vector4 _color) {
 
 //-----------------------------------------------------------------------------
 
+/** Sets the ambient color of an object
+ *
+ * @param _objectId  Id of an Object
+ * @param _color     Color to be set
+ */
+void ColorPlugin::setObjectAmbientColor(int _objectId , Vector4 _color) {
+  BaseObjectData* object;
+  if ( ! PluginFunctions::getObject(_objectId,object) ) {
+    return;
+  }
+
+  OpenMesh::Vec4f tmp = OpenMesh::Vec4f(_color);
+  object->materialNode()->set_ambient_color(tmp);
+}
+
+//-----------------------------------------------------------------------------
+
+/** Sets the diffuse color of an object
+ *
+ * @param _objectId  Id of an Object
+ * @param _color     Color to be set
+ */
+void ColorPlugin::setObjectDiffuseColor(int _objectId , Vector4 _color) {
+  BaseObjectData* object;
+  if ( ! PluginFunctions::getObject(_objectId,object) ) {
+    return;
+  }
+
+  OpenMesh::Vec4f tmp = OpenMesh::Vec4f(_color);
+  object->materialNode()->set_diffuse_color(tmp);
+}
+
+//-----------------------------------------------------------------------------
+
+/** Sets the specular color of an object
+ *
+ * @param _objectId  Id of an Object
+ * @param _color     Color to be set
+ */
+void ColorPlugin::setObjectSpecularColor(int _objectId , Vector4 _color) {
+  BaseObjectData* object;
+  if ( ! PluginFunctions::getObject(_objectId,object) ) {
+    return;
+  }
+
+  OpenMesh::Vec4f tmp = OpenMesh::Vec4f(_color);
+  object->materialNode()->set_specular_color(tmp);
+}
+
+//-----------------------------------------------------------------------------
+
 /** \brief Generate an icon with given color
  *
  * @param _color a color vector
diff --git a/ColorPlugin.hh b/ColorPlugin.hh
index d6ef99f233691a0ffe06eda97246ddf42c6f41ac..a6fab8febd1d8690e22d5ab9ddc1b663046f1459 100644
--- a/ColorPlugin.hh
+++ b/ColorPlugin.hh
@@ -186,6 +186,21 @@ class ColorPlugin : public QObject, BaseInterface, MenuInterface, ScriptInterfac
      */
     void setObjectEmissiveColor(int _objectId , Vector4 _color);
 
+    /**
+     * Sets the ambient color of an object
+     */
+    void setObjectAmbientColor(int _objectId , Vector4 _color);
+
+    /**
+     * Sets the diffuse color of an object
+     */
+    void setObjectDiffuseColor(int _objectId , Vector4 _color);
+
+    /**
+     * Sets the specular color of an object
+     */
+    void setObjectSpecularColor(int _objectId , Vector4 _color);
+
   /** @} */
 
   //===========================================================================