Index: src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFColor.java
===================================================================
--- src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFColor.java	(Revision 1372149)
+++ src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFColor.java	(Arbeitskopie)
@@ -44,12 +44,12 @@
 
     public XSSFColor(java.awt.Color clr) {
         this();
-        ctColor.setRgb(new byte[]{(byte)clr.getRed(), (byte)clr.getGreen(), (byte)clr.getBlue()});
+        this.setRgb(new byte[]{(byte)clr.getRed(), (byte)clr.getGreen(), (byte)clr.getBlue()});
     }
 
     public XSSFColor(byte[] rgb) {
         this();
-        ctColor.setRgb(rgb);
+        this.setRgb(rgb);
     }
 
     /**
Index: src/ooxml/java/org/apache/poi/xssf/model/ThemesTable.java
===================================================================
--- src/ooxml/java/org/apache/poi/xssf/model/ThemesTable.java	(Revision 1372149)
+++ src/ooxml/java/org/apache/poi/xssf/model/ThemesTable.java	(Arbeitskopie)
@@ -96,7 +96,8 @@
        XSSFColor themeColor = getThemeColor(color.getTheme());
        // Set the raw colour, not the adjusted one
        // Do a raw set, no adjusting at the XSSFColor layer either
-       color.getCTColor().setRgb(themeColor.getCTColor().getRgb());
+       // XSSFColor constructor was patched, so adjust back is now necessary
+       color.setRgb(themeColor.getCTColor().getRgb());
        
        // All done
     }