diff --git a/draftlogs/7216_remove.md b/draftlogs/7216_remove.md
new file mode 100644
index 00000000000..5a47404748f
--- /dev/null
+++ b/draftlogs/7216_remove.md
@@ -0,0 +1 @@
+Drop support for deprecated error bar `opacity` attribute (use alpha channel of error bar `color` attribute instead) [[#7214](https://github.com/plotly/plotly.js/pull/7216)]
\ No newline at end of file
diff --git a/src/components/errorbars/attributes.js b/src/components/errorbars/attributes.js
index bf4d1243105..d564fe00562 100644
--- a/src/components/errorbars/attributes.js
+++ b/src/components/errorbars/attributes.js
@@ -102,7 +102,7 @@ module.exports = {
     color: {
         valType: 'color',
         editType: 'style',
-        description: 'Sets the stoke color of the error bars.'
+        description: 'Sets the stroke color of the error bars.'
     },
     thickness: {
         valType: 'number',
@@ -121,15 +121,4 @@ module.exports = {
         ].join(' ')
     },
     editType: 'calc',
-
-    _deprecated: {
-        opacity: {
-            valType: 'number',
-            editType: 'style',
-            description: [
-                'Obsolete.',
-                'Use the alpha channel in error bar `color` to set the opacity.'
-            ].join(' ')
-        }
-    }
 };
diff --git a/src/plot_api/helpers.js b/src/plot_api/helpers.js
index 8b3ff5ee40c..f1d53378f7b 100644
--- a/src/plot_api/helpers.js
+++ b/src/plot_api/helpers.js
@@ -272,18 +272,6 @@ exports.cleanData = function(data) {
             delete trace.xbins;
         }
 
-        // error_y.opacity is obsolete - merge into color
-        if(trace.error_y && 'opacity' in trace.error_y) {
-            var dc = Color.defaults;
-            var yeColor = trace.error_y.color || (traceIs(trace, 'bar') ?
-                Color.defaultLine :
-                dc[tracei % dc.length]);
-            trace.error_y.color = Color.addOpacity(
-                Color.rgb(yeColor),
-                Color.opacity(yeColor) * trace.error_y.opacity);
-            delete trace.error_y.opacity;
-        }
-
         // now we have only one 1D histogram type, and whether
         // it uses x or y data depends on trace.orientation
         if(trace.type === 'histogramy') exports.swapXYData(trace);
diff --git a/test/image/baselines/error_bar_style.png b/test/image/baselines/error_bar_style.png
index 93cf22957bf..d347e2baa9b 100644
Binary files a/test/image/baselines/error_bar_style.png and b/test/image/baselines/error_bar_style.png differ
diff --git a/test/image/mocks/error_bar_style.json b/test/image/mocks/error_bar_style.json
index ca0fa82849a..805d441806a 100644
--- a/test/image/mocks/error_bar_style.json
+++ b/test/image/mocks/error_bar_style.json
@@ -70,18 +70,16 @@
    "error_y": {
     "type": "constant",
     "value": 0.1,
-    "color": "#85144B",
+    "color": "#85144BCC",
     "thickness": 1.5,
-    "width": 3,
-    "opacity": 1
+    "width": 3
    },
    "error_x": {
     "type": "constant",
     "value": 0.2,
-    "color": "#85144B",
+    "color": "#85144B44",
     "thickness": 1.5,
-    "width": 3,
-    "opacity": 1
+    "width": 3
    },
    "marker": {
     "color": "#85144B",
diff --git a/test/plot-schema.json b/test/plot-schema.json
index 50a9bb78b8c..89a8d7289c9 100644
--- a/test/plot-schema.json
+++ b/test/plot-schema.json
@@ -17345,13 +17345,6 @@
      "valType": "number"
     },
     "error_x": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -17373,7 +17366,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -17445,13 +17438,6 @@
      }
     },
     "error_y": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -17473,7 +17459,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -43766,13 +43752,6 @@
      "valType": "string"
     },
     "error_x": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -43794,7 +43773,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -43866,13 +43845,6 @@
      }
     },
     "error_y": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -43894,7 +43866,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -64053,13 +64025,6 @@
      "valType": "number"
     },
     "error_x": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -64081,7 +64046,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -64153,13 +64118,6 @@
      }
     },
     "error_y": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "style",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -64181,7 +64139,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "style",
       "valType": "color"
      },
@@ -66984,13 +66942,6 @@
      "valType": "string"
     },
     "error_x": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "calc",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -67012,7 +66963,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "calc",
       "valType": "color"
      },
@@ -67084,13 +67035,6 @@
      }
     },
     "error_y": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "calc",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -67112,7 +67056,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "calc",
       "valType": "color"
      },
@@ -67184,13 +67128,6 @@
      }
     },
     "error_z": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "calc",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -67212,7 +67149,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "calc",
       "valType": "color"
      },
@@ -74702,13 +74639,6 @@
      "valType": "number"
     },
     "error_x": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "calc",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -74730,7 +74660,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "calc",
       "valType": "color"
      },
@@ -74802,13 +74732,6 @@
      }
     },
     "error_y": {
-     "_deprecated": {
-      "opacity": {
-       "description": "Obsolete. Use the alpha channel in error bar `color` to set the opacity.",
-       "editType": "calc",
-       "valType": "number"
-      }
-     },
      "array": {
       "description": "Sets the data corresponding the length of each error bar. Values are plotted relative to the underlying data.",
       "editType": "calc",
@@ -74830,7 +74753,7 @@
       "valType": "string"
      },
      "color": {
-      "description": "Sets the stoke color of the error bars.",
+      "description": "Sets the stroke color of the error bars.",
       "editType": "calc",
       "valType": "color"
      },