Index: src/wp-content/themes/twentyfifteen/inc/customizer.php
===================================================================
--- src/wp-content/themes/twentyfifteen/inc/customizer.php	(revision 29896)
+++ src/wp-content/themes/twentyfifteen/inc/customizer.php	(working copy)
@@ -521,6 +521,15 @@
 			background-color: %12$s;
 		}
 
+		/* Sidebar Menu Drop Down Arrow and Widget Title Color */
+		.dropdown-toggle:after,
+		.widget,
+		.widget-title,
+		.widget blockquote cite,
+		.widget blockquote small {
+			color: %9$s;
+		}
+
 		@media screen and (min-width: 38.75em) {
 			/* Main Text Color */
 			.page-header {
@@ -559,14 +568,6 @@
 				background-color: %8$s;
 			}
 
-			.secondary a,
-			.dropdown-toggle:after,
-			.widget-title,
-			.widget blockquote cite,
-			.widget blockquote small {
-				color: %8$s;
-			}
-
 			.dropdown-toggle:focus {
 				outline-color: %8$s;
 			}