matplotlib · Vashesh08 · Oct 4, 2023 · Oct 4, 2023 · Oct 4, 2023 · Oct 6, 2023
diff --git a/lib/matplotlib/patches.py b/lib/matplotlib/patches.py
@@ -56,8 +56,16 @@ def __init__(self, *,
                  fill=True,
                  capstyle=None,
                  joinstyle=None,
+                 hatchcolor=None,
                  **kwargs):
         """
+        Parameters
+        ----------
+
+        hatchcolor : color or list of color, optional
+            The color of the hatch inside the bar
+            .. versionadded:: 3.9
+
         The following kwarg properties are supported
 
         %(Patch:kwdoc)s
@@ -71,7 +79,7 @@ def __init__(self, *,
         if joinstyle is None:
             joinstyle = JoinStyle.miter
 
-        self._hatch_color = colors.to_rgba(mpl.rcParams['hatch.color'])
+        self.set_hatch_color = False
         self._fill = bool(fill)  # needed for set_facecolor call
         if color is not None:
             if edgecolor is not None or facecolor is not None:
@@ -80,6 +88,7 @@ def __init__(self, *,
                     "the edgecolor or facecolor properties.")
             self.set_color(color)
         else:
+            self.set_hatchcolor(hatchcolor)
             self.set_edgecolor(edgecolor)
             self.set_facecolor(facecolor)
 
@@ -312,18 +321,18 @@ def set_antialiased(self, aa):
         self.stale = True
 
     def _set_edgecolor(self, color):
-        set_hatch_color = True
+        set_hatch_color_from_edgecolor = True
         if color is None:
             if (mpl.rcParams['patch.force_edgecolor'] or
                     not self._fill or self._edge_default):
                 color = mpl.rcParams['patch.edgecolor']
             else:
                 color = 'none'
-                set_hatch_color = False
+                set_hatch_color_from_edgecolor = False
 
         self._edgecolor = colors.to_rgba(color, self._alpha)
-        if set_hatch_color:
-            self._hatch_color = self._edgecolor
+        if set_hatch_color_from_edgecolor:
+            self.set_hatchcolor(color, True)
         self.stale = True
 
     def set_edgecolor(self, color):
@@ -369,8 +378,33 @@ def set_color(self, c):
             For setting the edge or face color individually.
         """
         self.set_facecolor(c)
+        self.set_hatchcolor(c)
         self.set_edgecolor(c)
 
+    def _set_hatchcolor(self, color, set_hatchcolor_from_edgecolor=False):
+        if not set_hatchcolor_from_edgecolor:
+            self.set_hatch_color = True
+            if color is None:
+                self.set_hatch_color = False
+                color = mpl.rcParams['hatch.color']
+            alpha = self._alpha if self._fill else 0
+            self._hatch_color = colors.to_rgba(color, alpha)
+            self.stale = True
+
+        if not self.set_hatch_color:
+            self._hatch_color = colors.to_rgba(color, self._alpha)
+
+    def set_hatchcolor(self, color, set_hatchcolor_from_edgecolor=False):
+        """
+        Set the patch hatch color.
+
+        Parameters
+        ----------
+        c : color or None
+        """
+        self._original_hatchcolor = color
+        self._set_hatchcolor(color, set_hatchcolor_from_edgecolor)
+
     def set_alpha(self, alpha):
         # docstring inherited
         super().set_alpha(alpha)

diff --git a/lib/matplotlib/patches.pyi b/lib/matplotlib/patches.pyi
@@ -25,6 +25,7 @@ class Patch(artist.Artist):
         fill: bool = ...,
         capstyle: CapStyleType | None = ...,
         joinstyle: JoinStyleType | None = ...,
+        hatchcolor: ColorType | None = ...,
         **kwargs,
     ) -> None: ...
     def get_verts(self) -> ArrayLike: ...
@@ -48,6 +49,7 @@ class Patch(artist.Artist):
     def set_edgecolor(self, color: ColorType | None) -> None: ...
     def set_facecolor(self, color: ColorType | None) -> None: ...
     def set_color(self, c: ColorType | None) -> None: ...
+    def set_hatchcolor(self, color: ColorType | None, set_hatchcolor_from_edgecolor=False) -> None: ...
     def set_alpha(self, alpha: float | None) -> None: ...
     def set_linewidth(self, w: float | None) -> None: ...
     def set_linestyle(self, ls: LineStyleType | None) -> None: ...

diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor.pdf b/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor.png b/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor.pdf b/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor.png b/lib/matplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor.png
diff --git a/...atplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor_and_edgecolor.pdf b/...atplotlib/tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor_and_edgecolor.pdf
diff --git a/...tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor_and_edgecolor.png b/...tests/baseline_images/test_axes/bar_hatchcolor_with_facecolor_and_edgecolor.png
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -8899,3 +8899,31 @@ def test_axhvlinespan_interpolation():
     ax.axhline(1, c="C0", alpha=.5)
     ax.axhspan(.8, .9, fc="C1", alpha=.5)
     ax.axhspan(.6, .7, .8, .9, fc="C2", alpha=.5)
+
+
+@image_comparison(["bar_hatchcolor_with_facecolor_and_edgecolor"],
+                  extensions=["png", "pdf"])
+def test_bar_hatchcolor_with_facecolor_and_edgecolor():
+
+    x = [2, 3, 4, 5]
+    y = [1, 3, 1, 4]
+
+    fig, ax = plt.subplots()
+    ax.bar(x, y, hatch="////", facecolor="yellow",
+             hatchcolor="red", edgecolor="blue")
+
+
+@image_comparison(["bar_hatchcolor_with_facecolor"], extensions=["png", "pdf"])
+def test_bar_hatchcolor_with_facecolor():
+    x = [6, 7, 8, 9]
+    y = [2, 4, 7, 3]
+    fig, ax = plt.subplots()
+    ax.bar(x, y, hatch="////", hatchcolor="green", facecolor="red")
+
+
+@image_comparison(["bar_hatchcolor"], extensions=["png", "pdf"])
+def test_bar_hatchcolor():
+    x = [4, 7, 19, 8]
+    y = [1, 5, 8, 14]
+    fig, ax = plt.subplots()
+    ax.bar(x, y, hatch="////", hatchcolor="orange")