diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/exceptionDays/CalendarExceptionTypeCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/exceptionDays/CalendarExceptionTypeCRUDController.java
index f9fffea14..d469c33a8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/exceptionDays/CalendarExceptionTypeCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/exceptionDays/CalendarExceptionTypeCRUDController.java
@@ -49,6 +49,7 @@ import org.zkoss.zul.Checkbox;
 import org.zkoss.zul.Grid;
 import org.zkoss.zul.Hbox;
 import org.zkoss.zul.Label;
+import org.zkoss.zul.Listbox;
 import org.zkoss.zul.Listcell;
 import org.zkoss.zul.Listitem;
 import org.zkoss.zul.ListitemRenderer;
@@ -75,6 +76,8 @@ public class CalendarExceptionTypeCRUDController extends
 
     private EffortDurationPicker extraEffort;
 
+    private Listbox colorsListbox;
+
     private static ListitemRenderer calendarExceptionTypeColorRenderer = new ListitemRenderer() {
         @Override
         public void render(Listitem item, Object data) throws Exception {
@@ -265,4 +268,19 @@ public class CalendarExceptionTypeCRUDController extends
         return exceptionDayTypeRenderer;
     }
 
+    public String getStyleColorOwnException() {
+        return (getExceptionDayType() == null) ? "" : "background-color: "
+                + getExceptionDayType().getColor().getColorOwnException();
+    }
+
+    public String getStyleColorDerivedException() {
+        return (getExceptionDayType() == null) ? "" : "background-color: "
+                + getExceptionDayType().getColor().getColorDerivedException();
+    }
+
+    public void reloadSampleColors() {
+        Util.reloadBindings(editWindow.getFellow("colorSampleOwn"));
+        Util.reloadBindings(editWindow.getFellow("colorSampleDerived"));
+    }
+
 }
diff --git a/navalplanner-webapp/src/main/webapp/common/css/navalplan_zk.css b/navalplanner-webapp/src/main/webapp/common/css/navalplan_zk.css
index 5f17617b2..320329e20 100644
--- a/navalplanner-webapp/src/main/webapp/common/css/navalplan_zk.css
+++ b/navalplanner-webapp/src/main/webapp/common/css/navalplan_zk.css
@@ -1403,6 +1403,12 @@ display:none;
     overflow: hidden;
 }
 
+.color-sample {
+    height: 10px;
+    width: 20px;
+    border: solid 1px black;
+}
+
 /* Expand vertical boxes for non-ffox browsers */
 .z-vbox {
     width:100%;
diff --git a/navalplanner-webapp/src/main/webapp/excetiondays/_editExceptionDayType.zul b/navalplanner-webapp/src/main/webapp/excetiondays/_editExceptionDayType.zul
index 7e598c996..3d4e3c880 100644
--- a/navalplanner-webapp/src/main/webapp/excetiondays/_editExceptionDayType.zul
+++ b/navalplanner-webapp/src/main/webapp/excetiondays/_editExceptionDayType.zul
@@ -56,12 +56,19 @@
                         </row>
                         <row>
                             <label value="${i18n:_('Color')}" />
-                            <listbox id="colorsListbox" mold="select"
+                            <hbox align="pack">
+                                <listbox id="colorsListbox" mold="select"
                                     model="@{controller.colors}"
                                     selectedItem="@{controller.exceptionDayType.color}"
-                                    itemRenderer="@{controller.colorsRenderer}"/>
+                                    itemRenderer="@{controller.colorsRenderer}"
+                                    onSelect="controller.reloadSampleColors()" />
+                                <div id="colorSampleOwn" sclass="color-sample" style="@{controller.styleColorOwnException}" />
+                                <label value="${i18n:_('Own exception')}" />
+                                <div id="colorSampleDerived" sclass="color-sample" style="@{controller.styleColorDerivedException}" />
+                                <label value="${i18n:_('Derived exception')}" />
+                            </hbox>
                         </row>
-                         <row>
+                        <row>
                             <label value="${i18n:_('Standard Effort')}" />
                             <effortDurationPicker id="standardEffort" />
                         </row>