diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -36,7 +36,7 @@
     'rsrc/css/application/base/main-menu-view.css' => '44b4a289',
     'rsrc/css/application/base/notification-menu.css' => 'f31c0bde',
     'rsrc/css/application/base/phabricator-application-launch-view.css' => '9a233ed6',
-    'rsrc/css/application/base/phui-theme.css' => '1ccdcc84',
+    'rsrc/css/application/base/phui-theme.css' => 'd4a49411',
     'rsrc/css/application/base/standard-page-view.css' => '43045fb4',
     'rsrc/css/application/calendar/calendar-icon.css' => '98ce946d',
     'rsrc/css/application/chatlog/chatlog.css' => 'f1971c1c',
@@ -792,7 +792,7 @@
     'phui-status-list-view-css' => '888cedb8',
     'phui-tag-view-css' => '402691cc',
     'phui-text-css' => 'cf019f54',
-    'phui-theme-css' => '1ccdcc84',
+    'phui-theme-css' => 'd4a49411',
     'phui-timeline-view-css' => '2d181f3f',
     'phui-workboard-view-css' => '0cac51a4',
     'phui-workpanel-view-css' => '4bdc2562',
diff --git a/src/applications/config/option/PhabricatorUIConfigOptions.php b/src/applications/config/option/PhabricatorUIConfigOptions.php
--- a/src/applications/config/option/PhabricatorUIConfigOptions.php
+++ b/src/applications/config/option/PhabricatorUIConfigOptions.php
@@ -47,7 +47,7 @@
 EOJSON;
 
     return array(
-      $this->newOption('ui.header-color', 'enum', 'light')
+      $this->newOption('ui.header-color', 'enum', 'blindigo')
         ->setDescription(
           pht('Sets the color of the main header.'))
         ->setEnumOptions($options),
diff --git a/src/view/page/PhabricatorStandardPageView.php b/src/view/page/PhabricatorStandardPageView.php
--- a/src/view/page/PhabricatorStandardPageView.php
+++ b/src/view/page/PhabricatorStandardPageView.php
@@ -351,7 +351,6 @@
 
     $classes = array();
     $classes[] = 'main-page-frame';
-    $classes[] = 'phui-theme-'.PhabricatorEnv::getEnvConfig('ui.header-color');
     $developer_warning = null;
     if (PhabricatorEnv::getEnvConfig('phabricator.developer-mode') &&
         DarkConsoleErrorLogPluginAPI::getErrors()) {
@@ -511,6 +510,9 @@
       $classes[] = 'audible';
     }
 
+    $classes[] = 'phui-theme-'.PhabricatorEnv::getEnvConfig('ui.header-color');
+
+
     return implode(' ', $classes);
   }
 
diff --git a/webroot/rsrc/css/application/base/phui-theme.css b/webroot/rsrc/css/application/base/phui-theme.css
--- a/webroot/rsrc/css/application/base/phui-theme.css
+++ b/webroot/rsrc/css/application/base/phui-theme.css
@@ -71,3 +71,25 @@
   border-left: 1px solid {$lightblueborder};
   border-right: 1px solid {$lightblueborder};
 }
+
+/*--- Dark "Classic" ---------------------------------------------------------*/
+
+.phui-theme-dark {
+  background-color: #ebecee;
+}
+
+.phui-theme-dark .phui-box-border {
+  border-color: {$lightblueborder};
+  border-bottom-color: {$blueborder};
+}
+
+/*--- Blindigo "Phacility" ---------------------------------------------------*/
+
+.phui-theme-blindigo {
+  background-color: #F1F1F4;
+}
+
+.phui-theme-blindigo .phui-box-border {
+  border-color: {$lightblueborder};
+  border-bottom-color: {$blueborder};
+}