diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7693f5829..3a4467268 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Enabled `hyphens: auto` globally (with exceptions) to prevent overflow with longer words (#1215)
 - Removed fixed size from `ProjectBar` to prevent overflow when text wraps (#1221)
 - Added missing translation strings (#1222)
+- Changed `colour_raw` to now correctly return a 4-tuple (R, G, B, Clear) in simulation
 
 ## Changed
 
diff --git a/public/shims/sense_hat/sense_hat_blob.py b/public/shims/sense_hat/sense_hat_blob.py
index 301c735e3..0ec207f71 100644
--- a/public/shims/sense_hat/sense_hat_blob.py
+++ b/public/shims/sense_hat/sense_hat_blob.py
@@ -673,7 +673,14 @@ def max_raw(self):
 
     @property
     def colour_raw(self):
-        return _ish.colourRead()
+      """
+      Ensure a 4 length tuple is returned even if simulation only provides 3 values
+      """
+      data = _ish.colourRead()
+      if len(data) == 3:
+        data.append(256)  # Append dummy Clear value
+      return tuple(data)
+
 
     @property
     def red_raw(self):
@@ -1507,7 +1514,7 @@ def get_compass(self):
         # but the emulator cannot do fusionPose as we derive everything from the orientation.
         # Therefore, we a shortcut and read directly from our internal module that applies compass tilt compensation algorithm
         # and returns the heading in radians.
-        
+
         deg = math.degrees(_ish.headingRead())
 
         return deg + 360 if deg < 0 else deg