diff --git a/kitty/utils.py b/kitty/utils.py
index cbab7463c..8408c532f 100644
--- a/kitty/utils.py
+++ b/kitty/utils.py
@@ -44,7 +44,6 @@
 )
 from .fast_data_types import WINDOW_FULLSCREEN, WINDOW_MAXIMIZED, WINDOW_MINIMIZED, WINDOW_NORMAL, Color, Shlex, get_options, monotonic, open_tty
 from .fast_data_types import timed_debug_print as _timed_debug_print
-from .rgb import to_color
 from .types import run_once
 from .typing import AddressFamily, PopenType, Socket, StartupCtx
 
@@ -164,26 +163,6 @@ def color_from_int(val: int) -> Color:
     return Color((val >> 16) & 0xFF, (val >> 8) & 0xFF, val & 0xFF)
 
 
-def parse_color_set(raw: str) -> Generator[Tuple[int, Optional[int]], None, None]:
-    parts = raw.split(';')
-    lp = len(parts)
-    if lp % 2 != 0:
-        return
-    for c_, spec in [parts[i:i + 2] for i in range(0, len(parts), 2)]:
-        try:
-            c = int(c_)
-            if c < 0 or c > 255:
-                continue
-            if spec == '?':
-                yield c, None
-            else:
-                q = to_color(spec)
-                if q is not None:
-                    yield c, int(q) & 0xffffff
-        except Exception:
-            continue
-
-
 class ScreenSize(NamedTuple):
     rows: int
     cols: int
diff --git a/kitty/window.py b/kitty/window.py
index 305c3d383..07debc310 100644
--- a/kitty/window.py
+++ b/kitty/window.py
@@ -111,7 +111,6 @@
     log_error,
     open_cmd,
     open_url,
-    parse_color_set,
     path_from_osc7_url,
     resolve_custom_file,
     resolved_shell,
@@ -1293,6 +1292,26 @@ def change(which: DynamicColor, val: str) -> None:
     def set_color_table_color(self, code: int, bvalue: Optional[memoryview] = None) -> None:
         value = str(bvalue or b'', 'utf-8', 'replace')
         cp = self.screen.color_profile
+
+        def parse_color_set(raw: str) -> Generator[Tuple[int, Optional[int]], None, None]:
+            parts = raw.split(';')
+            lp = len(parts)
+            if lp % 2 != 0:
+                return
+            for c_, spec in [parts[i:i + 2] for i in range(0, len(parts), 2)]:
+                try:
+                    c = int(c_)
+                    if c < 0 or c > 255:
+                        continue
+                    if spec == '?':
+                        yield c, None
+                    else:
+                        q = to_color(spec)
+                        if q is not None:
+                            yield c, color_as_int(q)
+                except Exception:
+                    continue
+
         if code == 4:
             changed = False
             for c, val in parse_color_set(value):