diff --git a/src/blenderbim/blenderbim/bim/data/webui/sioserver.py b/src/blenderbim/blenderbim/bim/data/webui/sioserver.py
index 9d16717cc6..4876e578fe 100644
--- a/src/blenderbim/blenderbim/bim/data/webui/sioserver.py
+++ b/src/blenderbim/blenderbim/bim/data/webui/sioserver.py
@@ -34,7 +34,7 @@ sio.attach(app)
 
 # represents a caching for blender messages
 blender_messages = {}
-blender_them_data = {}
+blender_theme = {}
 
 
 # Web namespace
@@ -46,7 +46,7 @@ class WebNamespace(socketio.AsyncNamespace):
         print(f"Web client connected: {sid}")
         if blender_messages:
             await sio.emit("connected_clients", list(blender_messages.keys()), namespace="/web", room=sid)
-            await sio.emit("theme_data", blender_them_data, namespace="/web", room=sid)
+            await sio.emit("theme_data", blender_theme, namespace="/web", room=sid)
             await self.send_cached_messages(sid)
 
     async def on_disconnect(self, sid):
diff --git a/src/blenderbim/blenderbim/core/web.py b/src/blenderbim/blenderbim/core/web.py
index 581ca35772..d69508d901 100644
--- a/src/blenderbim/blenderbim/core/web.py
+++ b/src/blenderbim/blenderbim/core/web.py
@@ -8,6 +8,7 @@ def connect_websocket_server(web, port):
         web.start_websocket_server(port)
         if web.has_started(port):
             web.connect_websocket_server(port)
+            web.send_theme_data()
             web.open_web_browser(port)
         return
 
diff --git a/src/blenderbim/blenderbim/tool/web.py b/src/blenderbim/blenderbim/tool/web.py
index 47f83bd4e1..4c46930121 100644
--- a/src/blenderbim/blenderbim/tool/web.py
+++ b/src/blenderbim/blenderbim/tool/web.py
@@ -375,6 +375,28 @@ class Web(blenderbim.core.tool.Web):
     def open_web_browser(cls, port: int) -> None:
         webbrowser.open(f"http://127.0.0.1:{port}/")
 
+    @classmethod
+    def send_theme_data(cls) -> None:
+        def get_color(theme, attribute) -> tuple[Any, ...]:
+            return tuple(getattr(theme, attribute)[:])
+
+        prefs = bpy.context.preferences.themes[0].preferences.space
+        panel = prefs.panelcolors
+        view_3d = bpy.context.preferences.themes[0].view_3d
+        theme = {
+            "window_background": get_color(prefs, "back"),
+            # "title": get_color(prefs, "title"),
+            "text": get_color(prefs, "text"),
+            # "header": get_color(prefs, "header"),
+            # "header_text": get_color(prefs, "header_text"),
+            # "header_text_highlight": get_color(prefs, "header_text_hi"),
+            "navigation_bar": get_color(prefs, "navigation_bar"),
+            "panel_header": get_color(panel, "header"),
+            "panel_background": get_color(panel, "back"),
+            "active_object": get_color(view_3d, "object_active"),
+        }
+        cls.send_webui_data(theme, "theme", "theme_data", use_web_data=False)
+
     @classmethod
     async def sio_connect(cls, url: str) -> None:
         await sio.connect(url, transports=["websocket"], namespaces="/blender")