Index: themes/twentyten/editor-blocks.css
===================================================================
--- themes/twentyten/editor-blocks.css	(revision 53709)
+++ themes/twentyten/editor-blocks.css	(working copy)
@@ -166,7 +166,9 @@
 	border: 0;
 	padding: 0 3em;
 }
-
+.editor-styles-wrapper blockquote * {
+	color: currentColor;
+}
 /* Table styles */
 
 .editor-block-list__block tr th,