diff --git a/source/class/osparc/theme/osparcdark/Color.js b/source/class/osparc/theme/osparcdark/Color.js
index d67b78ce..8f7690dc 100755
--- a/source/class/osparc/theme/osparcdark/Color.js
+++ b/source/class/osparc/theme/osparcdark/Color.js
@@ -169,6 +169,10 @@ qx.Theme.define("osparc.theme.osparcdark.Color", {
     "ready-green": "#33925A",
     "failed-red": "#FF2D2D",
 
-    "progressbar": "#60909e"
+    "progressbar": "#60909e",
+
+    "loading-page-background-color": "#202020",
+    "loading-page-text": "#FFFFFF",
+    "loading-page-spinner": "#DDDDDD"
   }
 });
diff --git a/source/class/osparc/theme/osparclight/Color.js b/source/class/osparc/theme/osparclight/Color.js
index 28eb1b42..4c7e8df8 100644
--- a/source/class/osparc/theme/osparclight/Color.js
+++ b/source/class/osparc/theme/osparclight/Color.js
@@ -169,6 +169,10 @@ qx.Theme.define("osparc.theme.osparclight.Color", {
     "ready-green": "#33925A",
     "failed-red": "#FF2D2D",
 
-    "progressbar": "#9F6F61"
+    "progressbar": "#9F6F61",
+
+    "loading-page-background-color": "#DFDFDF",
+    "loading-page-text": "#000000",
+    "loading-page-spinner": "#222222"
   }
 });