diff --git a/lib/matplotlib/colors.pyi b/lib/matplotlib/colors.pyi
index 354250a7bd22..9bb1725f4f78 100644
--- a/lib/matplotlib/colors.pyi
+++ b/lib/matplotlib/colors.pyi
@@ -69,6 +69,15 @@ class Colormap:
     N: int
     colorbar_extend: bool
     def __init__(self, name: str, N: int = ...) -> None: ...
+    @overload
+    def __call__(
+        self, X: Sequence[float] | np.ndarray, alpha: ArrayLike | None = ..., bytes: bool = ...
+    ) -> np.ndarray: ...
+    @overload
+    def __call__(
+        self, X: float, alpha: float | None = ..., bytes: bool = ...
+    ) -> tuple[float, float, float, float]: ...
+    @overload
     def __call__(
         self, X: ArrayLike, alpha: ArrayLike | None = ..., bytes: bool = ...
     ) -> tuple[float, float, float, float] | np.ndarray: ...