diff --git a/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css b/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
index aaa4329bec9..8145df6b81f 100644
--- a/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
+++ b/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
@@ -56,8 +56,8 @@ Button  {
 /* Inactive view tabs  */
 .MPartStack {
 	swt-draw-custom-tab-content-background: true;
-	swt-unselected-hot-tab-color-background: #48484c;
-}
+	swt-unselected-hot-tab-color-background: #161616;
+} 
 
 CTabFolder{
 	swt-selected-tab-highlight: #2b79d7;
diff --git a/bundles/org.eclipse.ui.themes/css/e4-dark_win.css b/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
index f5f0bd79fee..b333cd4bf09 100644
--- a/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
+++ b/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
@@ -138,7 +138,7 @@ ImageBasedFrame,
 /* Inactive view tabs  */
 .MPartStack {
 	swt-draw-custom-tab-content-background: true;
-	swt-unselected-hot-tab-color-background: #48484c;
+	swt-unselected-hot-tab-color-background: #161616;
 }
 
 CTabFolder{