diff --git a/.changeset/nasty-radios-kneel.md b/.changeset/nasty-radios-kneel.md
new file mode 100644
index 00000000..20066de7
--- /dev/null
+++ b/.changeset/nasty-radios-kneel.md
@@ -0,0 +1,5 @@
+---
+'playroom': minor
+---
+
+Set default colour scheme to 'system'.
diff --git a/src/StoreContext/StoreContext.tsx b/src/StoreContext/StoreContext.tsx
index d40aa405..7be96571 100644
--- a/src/StoreContext/StoreContext.tsx
+++ b/src/StoreContext/StoreContext.tsx
@@ -438,7 +438,7 @@ const initialState: State = {
   editorHeight: defaultEditorSize,
   editorWidth: defaultEditorSize,
   ready: false,
-  colorScheme: 'light',
+  colorScheme: 'system',
 };
 
 export const StoreContext = createContext<StoreContextValues>([