diff --git a/piker/ui/_position.py b/piker/ui/_position.py
index 65f1c2ac..c9b68a02 100644
--- a/piker/ui/_position.py
+++ b/piker/ui/_position.py
@@ -70,7 +70,7 @@ class PositionTracker:
     size_label: Label
     line: Optional[LevelLine] = None
 
-    _color: str = 'default_light'
+    _color: str = 'default_lightest'
 
     def __init__(
         self,