diff --git a/stubs/colour/@tests/stubtest_allowlist.txt b/stubs/colour/@tests/stubtest_allowlist.txt
new file mode 100644
index 000000000000..3de0f7e02e80
--- /dev/null
+++ b/stubs/colour/@tests/stubtest_allowlist.txt
@@ -0,0 +1 @@
+colour.Color.set_hex_l
diff --git a/stubs/colour/METADATA.toml b/stubs/colour/METADATA.toml
new file mode 100644
index 000000000000..bd433d77c277
--- /dev/null
+++ b/stubs/colour/METADATA.toml
@@ -0,0 +1,2 @@
+version = "0.1.5"
+upstream-repository = "https://github.com/vaab/colour"
diff --git a/stubs/colour/colour.pyi b/stubs/colour/colour.pyi
new file mode 100644
index 000000000000..4670b42b3d30
--- /dev/null
+++ b/stubs/colour/colour.pyi
@@ -0,0 +1,98 @@
+import re
+from collections.abc import Callable, Generator, Hashable
+from typing import Any, overload
+from typing_extensions import Self
+
+FLOAT_ERROR: float = 0.0000005
+
+RGB_TO_COLOR_NAMES: dict[tuple[int, int, int], list[str]]
+
+COLOR_NAME_TO_RGB: dict[list[str], tuple[int, int, int]]
+
+LONG_HEX_COLOR: re.Pattern[str]
+SHORT_HEX_COLOR: re.Pattern[str]
+
+class C_HSL:
+    def __getattr__(self, value: str) -> tuple[float, float, float]: ...
+
+class C_RGB:
+    def __getattr__(self, value: str) -> tuple[float, float, float]: ...
+
+class C_HEX:
+    def __getattr__(self, value: str) -> str: ...
+
+HSL: C_HSL
+RGB: C_RGB
+HEX: C_HEX
+
+def hsl2rgb(hsl: tuple[float, float, float]) -> tuple[float, float, float]: ...
+def rgb2hsl(rgb: tuple[float, float, float]) -> tuple[float, float, float]: ...
+def _hue2rgb(v1: float, v2: float, vH: float) -> float: ...
+def rgb2hex(rgb: tuple[float, float, float], force_long: bool = False) -> str: ...
+def hex2rgb(str_rgb: str) -> tuple[float, float, float]: ...
+def hex2web(hex: str) -> str: ...
+def web2hex(web: str, force_long: bool = False) -> str: ...
+
+hsl2hex: Callable[[tuple[float, float, float]], str]
+hex2hsl: Callable[[str], tuple[float, float, float]]
+rgb2web: Callable[[tuple[float, float, float]], str]
+web2rgb: Callable[[str], tuple[float, float, float]]
+web2hsl: Callable[[str], tuple[float, float, float]]
+hsl2web: Callable[[tuple[float, float, float]], str]
+
+def color_scale(
+    begin_hsl: tuple[float, float, float], end_hsl: tuple[float, float, float], nb: int
+) -> tuple[float, float, float]: ...
+def RGB_color_picker(obj: Any) -> Color: ...
+
+@overload
+def hash_or_str(obj: Hashable) -> int: ...
+@overload
+def hash_or_str(obj: object) -> str: ...  # type: ignore[overload-cannot-match]
+
+class Color:
+    def __init__(
+        self,
+        color: Self | str | None = None,
+        pick_for: object | None = None,
+        picker: Callable[[object], Color] = ...,
+        pick_key: Callable[[object], int | str] = ...,
+        **kwargs: Any,
+    ) -> None: ...
+    def __getattr__(self, label: str) -> Any: ...
+    def __setattr__(self, label: str, value: Any) -> None: ...
+    def get_hsl(self) -> tuple[float, float, float]: ...
+    def get_hex(self) -> str: ...
+    def get_hex_l(self) -> str: ...
+    def get_rgb(self) -> tuple[float, float, float]: ...
+    def get_hue(self) -> float: ...
+    def get_saturation(self) -> float: ...
+    def get_luminance(self) -> float: ...
+    def get_red(self) -> float: ...
+    def get_green(self) -> float: ...
+    def get_blue(self) -> float: ...
+    def get_web(self) -> str: ...
+    def set_hsl(self, value: float) -> None: ...
+    def set_rgb(self, value: float) -> None: ...
+    def set_hue(self, value: float) -> None: ...
+    def set_saturation(self, value: float) -> None: ...
+    def set_luminance(self, value: float) -> None: ...
+    def set_red(self, value: float) -> None: ...
+    def set_green(self, value: float) -> None: ...
+    def set_blue(self, value: float) -> None: ...
+    def set_hex(self, value: str) -> None: ...
+
+    set_hex_l: Callable[[str], None] = ...
+
+    def set_web(self, value: str) -> None: ...
+    def range_to(self, value: str | Color | None, steps: int) -> Generator[Color]: ...
+    def __eq__(self, other: object) -> bool | type[NotImplemented]: ...  # type: ignore[override, valid-type]  # pyright: ignore[reportInvalidTypeForm]
+
+RGB_equivalence: Callable[[Color, Color], bool]
+HSL_equivalence: Callable[[Color, Color], bool]
+
+def make_color_factory(
+    **kwargs_defaults: Any,
+) -> Callable[
+    [Color | str | None, object | None, Callable[[object], Color], object | None, Callable[[object], int | str]], Color
+]: ...