Theme color in Chrome Android

server/index.gohtml

@@ -13,9 +13,9 @@
     <meta name="HandheldFriendly" content="true">
 
     <!-- Mobile browsers, background color -->
-    <meta name="theme-color" content="#39005a">
-    <meta name="msapplication-navbutton-color" content="#39005a">
-    <meta name="apple-mobile-web-app-status-bar-style" content="#39005a">
+    <meta name="theme-color" content="#317f6f">
+    <meta name="msapplication-navbutton-color" content="#317f6f">
+    <meta name="apple-mobile-web-app-status-bar-style" content="#317f6f">
 
     <!-- Favicon, see favicon.io -->
     <link rel="icon" type="image/png" href="static/img/favicon.png">