diff --git a/wp-admin/css/colors-classic.css b/wp-admin/css/colors-classic.css
index 7cef93781..0a9cacf9d 100644
--- a/wp-admin/css/colors-classic.css
+++ b/wp-admin/css/colors-classic.css
@@ -319,6 +319,10 @@ div.dashboard-widget-submit input:hover,
 	color: #d54e21;
 }
 
+#the-comment-list .comment-item {
+	border-color: #dfdfdf;
+}
+
 .button-secondary:hover,
 #login form .submit input:hover {
 	border-color: #328ab2;
diff --git a/wp-admin/css/colors-fresh.css b/wp-admin/css/colors-fresh.css
index 97ed96179..2811c8ba3 100644
--- a/wp-admin/css/colors-fresh.css
+++ b/wp-admin/css/colors-fresh.css
@@ -327,6 +327,10 @@ div.dashboard-widget-submit input:hover,
 	color: #d54e21;
 }
 
+#the-comment-list .comment-item {
+	border-color: #dfdfdf;
+}
+
 .button-secondary:hover,
 #login form .submit input:hover {
 	border-color: #328ab2;