diff --git a/src/api/web/index.js b/src/api/web/index.js
index 19478ad6d..d4c3e6256 100644
--- a/src/api/web/index.js
+++ b/src/api/web/index.js
@@ -86,6 +86,7 @@ module.exports = function(config, auth, storage) {
       .replace(/ToReplaceByVersion/g, pkgJSON.version)
       .replace(/ToReplaceByTitle/g, _.get(config, 'web.title') ? config.web.title : WEB_TITLE)
       .replace(/ToReplaceByLogo/g, logoURI)
+      .replace(/ToReplaceByPrimaryColor/g, _.get(config, 'web.primary_color') ? config.web.primary_color : '')
       .replace(/ToReplaceByScope/g, _.get(config, 'web.scope') ? config.web.scope : '');
 
     res.setHeader('Content-Type', HEADERS.TEXT_HTML);