diff --git a/addons/mail/static/src/components/messaging_menu/messaging_menu.scss b/addons/mail/static/src/components/messaging_menu/messaging_menu.scss
index 582604deb58..e578218a166 100644
--- a/addons/mail/static/src/components/messaging_menu/messaging_menu.scss
+++ b/addons/mail/static/src/components/messaging_menu/messaging_menu.scss
@@ -105,7 +105,7 @@
 }
 
 .o_MessagingMenu_counter {
-    background-color: $o-brand-primary;
+    background-color: $o-enterprise-primary-color;
 }
 
 .o_MessagingMenu_dropdownMenu.o-mobile {
diff --git a/addons/mail/static/src/scss/systray.scss b/addons/mail/static/src/scss/systray.scss
index 7bf1193a8e8..e198424ebc0 100644
--- a/addons/mail/static/src/scss/systray.scss
+++ b/addons/mail/static/src/scss/systray.scss
@@ -20,7 +20,7 @@
         margin-top: -0.8rem;
         margin-right: 0;
         margin-left: -0.6rem;
-        background: #00A09D;
+        background: $o-enterprise-primary-color;
         color: white;
         vertical-align: super;
         font-size: 0.7em;