diff -u b/core/modules/contextual/css/contextual.theme.css b/core/modules/contextual/css/contextual.theme.css
--- b/core/modules/contextual/css/contextual.theme.css
+++ b/core/modules/contextual/css/contextual.theme.css
@@ -14,7 +14,7 @@
   overflow: hidden;
 }
 [dir="rtl"] .contextual {
-  left: 0;
+  left: -6px;
   right: auto;
 }
 
@@ -44,7 +44,7 @@
 [dir="rtl"] .contextual .trigger {
   float: left;
   right: auto;
-  left: 6px;
+  left: 0;
 }
 .contextual.open .trigger {
   border: 1px solid #ccc;
@@ -76,7 +76,7 @@
 [dir="rtl"] .contextual-region .contextual .contextual-links {
   border-radius: 0 4px 4px 4px;
   float: left;
-  left: 6px;
+  left: 0;
   right: auto;
   text-align: right;
 }
diff -u b/core/themes/stable/css/contextual/contextual.theme.css b/core/themes/stable/css/contextual/contextual.theme.css
--- b/core/themes/stable/css/contextual/contextual.theme.css
+++ b/core/themes/stable/css/contextual/contextual.theme.css
@@ -14,7 +14,7 @@
   overflow: hidden;
 }
 [dir="rtl"] .contextual {
-  left: 0;
+  left: -6px;
   right: auto;
 }
 
@@ -44,7 +44,7 @@
 [dir="rtl"] .contextual .trigger {
   float: left;
   right: auto;
-  left: 6px;
+  left: 0;
 }
 .contextual.open .trigger {
   border: 1px solid #ccc;
@@ -76,7 +76,7 @@
 [dir="rtl"] .contextual-region .contextual .contextual-links {
   border-radius: 0 4px 4px 4px;
   float: left;
-  left: 6px;
+  left: 0;
   right: auto;
   text-align: right;
 }