diff --git a/flutter/lib/models/ab_model.dart b/flutter/lib/models/ab_model.dart
index 613ec1ed3..3aa722a5a 100644
--- a/flutter/lib/models/ab_model.dart
+++ b/flutter/lib/models/ab_model.dart
@@ -648,6 +648,9 @@ class AbModel {
   }
 
   Color getCurrentAbTagColor(String tag) {
+    if (tag == kUntagged) {
+      return MyTheme.accent;
+    }
     int? colorValue = current.tagColors[tag];
     if (colorValue != null) {
       return Color(colorValue);