diff --git a/addons/web_kanban/static/src/css/kanban.css b/addons/web_kanban/static/src/css/kanban.css
index 7a1baa5a2fc..7a404e039a9 100644
--- a/addons/web_kanban/static/src/css/kanban.css
+++ b/addons/web_kanban/static/src/css/kanban.css
@@ -391,6 +391,9 @@
 }
 .openerp .oe_kanban_view .oe_kanban_footer_left .oe_kanban_mail_new {
   line-height: 18px;
+  background-color: #8a89ba;
+  color: white;
+  font-weight: bold;
   position: relative;
   top: -1px;
 }
diff --git a/addons/web_kanban/static/src/css/kanban.sass b/addons/web_kanban/static/src/css/kanban.sass
index 5d2a0c54b4b..134f2bd3416 100644
--- a/addons/web_kanban/static/src/css/kanban.sass
+++ b/addons/web_kanban/static/src/css/kanban.sass
@@ -340,6 +340,9 @@
                 font-size: 22px
         .oe_kanban_mail_new
             line-height: 18px
+            background-color: #8a89ba
+            color: white
+            font-weight: bold
             position: relative
             top: -1px
     .oe_kanban_bottom_right