--- a/ColorEditDialog.st	Tue Dec 11 15:37:03 2012 +0100
+++ b/ColorEditDialog.st	Tue Dec 11 16:44:21 2012 +0100
@@ -821,9 +821,7 @@
     previewBox isNil ifTrue:[^ self "called before setup"].
 
     previewBox backgroundColor:color.
-    previewBox foregroundColor:(color brightness < 0.5 
-                            ifTrue:[Color white] 
-                            ifFalse:[Color black]).
+    previewBox foregroundColor:color contrastingBlackOrWhite.
 ! !
 
 !ColorEditDialog methodsFor:'aspects'!