diff --git a/discord/ui/container.py b/discord/ui/container.py
index e0f013413..3767c6eab 100644
--- a/discord/ui/container.py
+++ b/discord/ui/container.py
@@ -234,7 +234,7 @@ class Container(Item[V]):
 
     @accent_colour.setter
     def accent_colour(self, value: Optional[Union[Colour, int]]) -> None:
-        if not isinstance(value, (int, Colour)):
+        if value is not None and not isinstance(value, (int, Colour)):
             raise TypeError(f'expected an int, or Colour, not {value.__class__.__name__!r}')
 
         self._colour = value