diff --git a/gtk2_ardour/ardour3_ui_default.conf b/gtk2_ardour/ardour3_ui_default.conf
index f20d942665..429124c8e7 100644
--- a/gtk2_ardour/ardour3_ui_default.conf
+++ b/gtk2_ardour/ardour3_ui_default.conf
@@ -98,7 +98,7 @@
     <Option name="silence text" value="0e066cff"/>
     <Option name="selected crossfade editor line" value="00dbdbff"/>
     <Option name="selected crossfade editor wave" value="f9ea14a0"/>
-    <Option name="selected region base" value="51518aff"/>
+    <Option name="selected region base" value="51518a97"/>
     <Option name="selected waveform fill" value="51518ac8"/>
     <Option name="selected waveform outline" value="0f0f0fcc"/>
     <Option name="selection rect" value="e8f4d377"/>