diff --git a/app/assets/stylesheets/common/base/discourse.scss b/app/assets/stylesheets/common/base/discourse.scss
index ce6ca6682c3..ae6aba12daf 100644
--- a/app/assets/stylesheets/common/base/discourse.scss
+++ b/app/assets/stylesheets/common/base/discourse.scss
@@ -32,8 +32,7 @@ small {
 
 
 blockquote {
-  border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -75%);
-  background-color: dark-light-diff($primary, $secondary, 97%, -65%);
+  @include post-aside;
   overflow: hidden;
   clear: both;
 }
diff --git a/app/assets/stylesheets/common/base/onebox.scss b/app/assets/stylesheets/common/base/onebox.scss
index 11e3fecf3bb..390ac83d527 100644
--- a/app/assets/stylesheets/common/base/onebox.scss
+++ b/app/assets/stylesheets/common/base/onebox.scss
@@ -11,10 +11,10 @@ a.loading-onebox {
 
 
 .onebox-result {
+  @include post-aside;
+
   margin-top: 15px;
   padding: 12px 25px 12px 12px;
-  border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -75%);
-  background-color: dark-light-diff($primary, $secondary, 97%, -65%);
   font-size: 1em;
   > .source {
     margin-bottom: 12px;
@@ -88,9 +88,9 @@ a.loading-onebox {
 }
 
 aside.onebox {
+  @include post-aside;
+
   padding: 12px 25px 12px 12px;
-  border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -75%);
-  background-color: dark-light-diff($primary, $secondary, 97%, -65%);
   font-size: 1em;
 
   header {
@@ -147,8 +147,7 @@ aside.onebox .onebox-body .onebox-avatar {
 
 blockquote {
   aside.onebox {
-    border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -75%);
-    background-color: dark-light-diff($primary, $secondary, 97%, -65%);
+    @include post-aside;
   }
 }
 
diff --git a/app/assets/stylesheets/common/base/topic-post.scss b/app/assets/stylesheets/common/base/topic-post.scss
index f0eee220af7..cb9565288dc 100644
--- a/app/assets/stylesheets/common/base/topic-post.scss
+++ b/app/assets/stylesheets/common/base/topic-post.scss
@@ -50,8 +50,8 @@ aside.quote {
   .badge-wrapper { margin-left: 5px; }
 
   .title {
-    border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -75%);
-    background-color: dark-light-diff($primary, $secondary, 97%, -65%);
+    @include post-aside;
+
     color: scale-color($primary, $lightness: 30%);
     // IE will screw up the blockquote underneath if bottom padding is 0px
     padding: 12px 12px 1px 12px;
diff --git a/app/assets/stylesheets/common/foundation/mixins.scss b/app/assets/stylesheets/common/foundation/mixins.scss
index 2243802d16e..4b560cc46f9 100644
--- a/app/assets/stylesheets/common/foundation/mixins.scss
+++ b/app/assets/stylesheets/common/foundation/mixins.scss
@@ -93,3 +93,10 @@
      -moz-user-select: none;
       -ms-user-select: none;
 }
+
+
+// Stuff we repeat
+@mixin post-aside {
+  border-left: 5px solid dark-light-diff($primary, $secondary, 90%, -85%);
+  background-color: dark-light-diff($primary, $secondary, 97%, -75%);
+}
diff --git a/app/assets/stylesheets/common/foundation/variables.scss b/app/assets/stylesheets/common/foundation/variables.scss
index 0c51ce420a6..e4b97ef9eda 100644
--- a/app/assets/stylesheets/common/foundation/variables.scss
+++ b/app/assets/stylesheets/common/foundation/variables.scss
@@ -19,6 +19,7 @@ $twitter: #00bced !default;
 $yahoo: #810293 !default;
 $github: #6d6d6d !default;
 
+
 // Fonts
 // --------------------------------------------------