diff --git a/microsite/siteConfig.js b/microsite/siteConfig.js
index f0762dbf09..d7a3bd67d0 100644
--- a/microsite/siteConfig.js
+++ b/microsite/siteConfig.js
@@ -67,8 +67,9 @@ const siteConfig = {
     primaryColor: '#36BAA2',
     secondaryColor: '#121212',
     textColor: '#FFFFFF',
-    navigatorTitleTextColor: '#9e9e9e',
-    navigatorItemTextColor: '#616161',
+    navigatorTitleTextColor: '#e4e4e4',
+    navigatorItemTextColor: '#9e9e9e',
+    navGroupSubcategoryTitleColor: '#9e9e9e',
   },
 
   /* Colors for syntax highlighting */
diff --git a/microsite/static/css/custom.css b/microsite/static/css/custom.css
index 5e078582cc..723594251a 100644
--- a/microsite/static/css/custom.css
+++ b/microsite/static/css/custom.css
@@ -113,6 +113,10 @@ td {
   color: $navigatorTitleTextColor;
 }
 
+.toc .toggleNav .navGroup .navGroupSubcategoryTitle {
+  color: $navGroupSubcategoryTitleColor;
+}
+
 .toc .toggleNav ul li a,
 .onPageNav a {
   color: $navigatorItemTextColor;