diff --git a/res/values/colors_material.xml b/res/values/colors_material.xml
index c1fd7da..bff8a11 100644
--- a/res/values/colors_material.xml
+++ b/res/values/colors_material.xml
@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <!-- Base colors -->
+    <color name="white">#FFFFFFFF</color>
+    <color name="black">#FF000000</color>
+    <color name="transparent">#00000000</color>
+
     <!-- Base purple colors -->
     <color name="material_purple_50">#f3e5f5</color>
     <color name="material_purple_100">#e1bee7</color>