Index: wp-content/themes/twentyfifteen/js/color-scheme-control.js
===================================================================
--- wp-content/themes/twentyfifteen/js/color-scheme-control.js	(revision 29737)
+++ wp-content/themes/twentyfifteen/js/color-scheme-control.js	(working copy)
@@ -19,12 +19,12 @@
 					// if Header Text is not hidden, update value
 					if ( 'blank' !== wp.customize( 'header_textcolor' ).get() ) {
 						wp.customize( 'header_textcolor' ).set( colorScheme[value].colors[4] );
-						headerTextColor.val( colorScheme[value].colors[4] )
-							.data( 'data-default-color', colorScheme[value].colors[4] )
-							.wpColorPicker( 'color', colorScheme[value].colors[4] )
-							.wpColorPicker( 'defaultColor', colorScheme[value].colors[4] );
+						headerTextColor.val( colorScheme[value].colors[4] ).wpColorPicker( 'color', colorScheme[value].colors[4] );
 					}
 
+					// update Header Text Color defaults regardless of display
+					headerTextColor.data( 'data-default-color', colorScheme[value].colors[4] ).wpColorPicker( 'defaultColor', colorScheme[value].colors[4] );
+
 					// update Background Color
 					wp.customize( 'background_color' ).set( colorScheme[value].colors[0] );
 					backgroundColor.val( colorScheme[value].colors[0] )