diff --git a/sksurgerybard/visualisation/bard_visualisation.py b/sksurgerybard/visualisation/bard_visualisation.py
index b4f8dce..f1ba344 100644
--- a/sksurgerybard/visualisation/bard_visualisation.py
+++ b/sksurgerybard/visualisation/bard_visualisation.py
@@ -250,11 +250,11 @@ def luminance_change_left(self, y_pos):
             return
         actor_index = len(self._target_anatomy_actors) - 2
         if actor_index >= 0:
-            target_colour = get_green(y_pos)
+            luminance, target_colour = get_green(y_pos)
             self._target_anatomy_actors[
                     actor_index].GetProperty().SetColor(target_colour)
             print(f"Changing luminance for actor {actor_index} to ",
-                  f"{target_colour}")
+                  f"{luminance}, RGB={target_colour}", flush=True)
 
     def luminance_change_right(self, y_pos):
         """
@@ -265,11 +265,11 @@ def luminance_change_right(self, y_pos):
         if len(self._target_anatomy_actors) < 1:
             return
         actor_index = len(self._target_anatomy_actors) - 1
-        target_colour = get_yellow(y_pos)
+        luminance, target_colour = get_yellow(y_pos)
         self._target_anatomy_actors[
                 actor_index].GetProperty().SetColor(target_colour)
         print(f"Changing luminance for actor {actor_index} to ",
-              f"{target_colour}")
+              f"{luminance}, RGB={target_colour}", flush=True)
 
     def next_target(self):
         """
diff --git a/sksurgerybard/visualisation/colours.py b/sksurgerybard/visualisation/colours.py
index 0bb7d38..07ec366 100644
--- a/sksurgerybard/visualisation/colours.py
+++ b/sksurgerybard/visualisation/colours.py
@@ -77,8 +77,10 @@ def integer_colour_to_float(colour):
 
 def get_green(y_pos):
     """Gets a green shade with luminace set by y_pos"""
-    return integer_colour_to_float(green.get(y_pos_to_luminance(y_pos)))
+    luminance = y_pos_to_luminance(y_pos)
+    return luminance, integer_colour_to_float(green.get(luminance))
 
 def get_yellow(y_pos):
     """Gets a yellow shade with luminace set by y_pos"""
-    return integer_colour_to_float(yellow.get(y_pos_to_luminance(y_pos)))
+    luminance = y_pos_to_luminance(y_pos)
+    return luminance, integer_colour_to_float(yellow.get(luminance))
diff --git a/tests/visualisation/test_colours.py b/tests/visualisation/test_colours.py
index 24ef470..e2b07d2 100644
--- a/tests/visualisation/test_colours.py
+++ b/tests/visualisation/test_colours.py
@@ -27,8 +27,8 @@ def test_integer_colour_to_float():
 
 def test_get_yellow():
     """Checks that get yellow returns the right value"""
-    assert cls.get_yellow(1.0) == [1.0, 1.0, 1.0]
+    assert cls.get_yellow(1.0)[1] == [1.0, 1.0, 1.0]
 
 def test_get_green():
     """Checks that get green returns the right value"""
-    assert cls.get_green(1.0) == [1.0, 1.0, 1.0]
+    assert cls.get_green(1.0)[1] == [1.0, 1.0, 1.0]