diff --git a/frontend/src/composables/theme.js b/frontend/src/composables/theme.js
new file mode 100644
index 000000000..b719b4398
--- /dev/null
+++ b/frontend/src/composables/theme.js
@@ -0,0 +1,48 @@
+import { ref } from 'vue'
+import { useTheme } from 'vuetify'
+import themeApi from '@/api/theme'
+
+export function useModoboaTheme() {
+  const vTheme = useTheme()
+  const theme = ref(null)
+
+  const enableTheme = async () => {
+    const response = await themeApi.getTheme()
+
+    theme.value = response.data
+    if (
+      theme.value.theme_primary_color !==
+      vTheme.themes.value.light.colors.primary
+    ) {
+      vTheme.themes.value.light.colors.primary = theme.value.theme_primary_color
+    }
+    if (
+      theme.value.theme_primary_color_light !==
+      vTheme.themes.value.light.colors['primary-lighten-1']
+    ) {
+      vTheme.themes.value.light.colors['primary-lighten-1'] =
+        theme.value.theme_primary_color_light
+    }
+    if (
+      theme.value.theme_primary_color_dark !==
+      vTheme.themes.value.light.colors['primary-darken-1']
+    ) {
+      vTheme.themes.value.light.colors['primary-darken-1'] =
+        theme.value.theme_primary_color_dark
+    }
+    if (
+      theme.value.theme_secondary_color !==
+      vTheme.themes.value.light.colors.secondary
+    ) {
+      vTheme.themes.value.light.colors.secondary =
+        theme.value.theme_secondary_color
+    }
+    if (
+      theme.value.theme_label_color !== vTheme.themes.value.light.colors.label
+    ) {
+      vTheme.themes.value.light.colors.label = theme.value.theme_label_color
+    }
+  }
+
+  return { theme, enableTheme }
+}
diff --git a/frontend/src/layouts/connected/ConnectedLayout.vue b/frontend/src/layouts/connected/ConnectedLayout.vue
index 0b954161c..31e82505a 100644
--- a/frontend/src/layouts/connected/ConnectedLayout.vue
+++ b/frontend/src/layouts/connected/ConnectedLayout.vue
@@ -26,17 +26,16 @@
 <script setup>
 import { ref, computed } from 'vue'
 import { useGettext } from 'vue3-gettext'
-import { useTheme } from 'vuetify'
 import { useAuthStore, useBusStore } from '@/stores'
+import { useModoboaTheme } from '@/composables/theme'
 import ConnectedView from './ConnectedView.vue'
 import NavBar from '@/components/shared/NavBar.vue'
 import TopMenu from '@/components/shared/TopMenu.vue'
-import themeApi from '@/api/theme'
 
 const authStore = useAuthStore()
 const busStore = useBusStore()
 const { $gettext } = useGettext()
-const theme = useTheme()
+const { enableTheme } = useModoboaTheme()
 
 const props = defineProps({
   color: {
@@ -69,41 +68,7 @@ busStore.$onAction(({ name, after }) => {
 }, true)
 
 if (props.loadTheme) {
-  themeApi.getTheme().then((response) => {
-    if (
-      response.data.theme_primary_color !==
-      theme.themes.value.light.colors.primary
-    ) {
-      theme.themes.value.light.colors.primary =
-        response.data.theme_primary_color
-    }
-    if (
-      response.data.theme_primary_color_light !==
-      theme.themes.value.light.colors['primary-lighten-1']
-    ) {
-      theme.themes.value.light.colors['primary-lighten-1'] =
-        response.data.theme_primary_color_light
-    }
-    if (
-      response.data.theme_primary_color_dark !==
-      theme.themes.value.light.colors['primary-darken-1']
-    ) {
-      theme.themes.value.light.colors['primary-darken-1'] =
-        response.data.theme_primary_color_dark
-    }
-    if (
-      response.data.theme_secondary_color !==
-      theme.themes.value.light.colors.secondary
-    ) {
-      theme.themes.value.light.colors.secondary =
-        response.data.theme_secondary_color
-    }
-    if (
-      response.data.theme_label_color !== theme.themes.value.light.colors.label
-    ) {
-      theme.themes.value.light.colors.label = response.data.theme_label_color
-    }
-  })
+  await enableTheme()
 }
 </script>
 
diff --git a/frontend/src/views/login/LoginCallbackView.vue b/frontend/src/views/login/LoginCallbackView.vue
index da0868224..ca47858be 100644
--- a/frontend/src/views/login/LoginCallbackView.vue
+++ b/frontend/src/views/login/LoginCallbackView.vue
@@ -1,30 +1,34 @@
 <script setup>
 import { onMounted } from 'vue'
 import { useAuthStore } from '@/stores'
+import { useModoboaTheme } from '@/composables/theme'
 
 const props = defineProps({
   redirectUrl: String,
 })
 
 const authStore = useAuthStore()
+const { enableTheme } = useModoboaTheme()
 
 onMounted(() => {
   authStore.completeLogin(props.redirectUrl)
 })
+
+await enableTheme()
 </script>
 
 <template>
   <v-container class="fill-height" fluid>
     <v-row align="center" justify="center">
       <v-col cols="auto" class="text-center">
-      <h1 class="ma-5">{{ $gettext('Attempting to log you in.') }}</h1>
-      <v-progress-circular
-        color="primary"
-        indeterminate
-        :size="128"
-        :width="12"
-        align-self="center"
-      ></v-progress-circular>
+        <h1 class="ma-5">{{ $gettext('Attempting to log you in.') }}</h1>
+        <v-progress-circular
+          color="primary"
+          indeterminate
+          :size="128"
+          :width="12"
+          align-self="center"
+        ></v-progress-circular>
       </v-col>
     </v-row>
   </v-container>
diff --git a/modoboa/core/views/auth.py b/modoboa/core/views/auth.py
index 2b3b607d7..334784219 100644
--- a/modoboa/core/views/auth.py
+++ b/modoboa/core/views/auth.py
@@ -37,6 +37,23 @@ from .. import signals
 logger = logging.getLogger("modoboa.auth")
 
 
+class ModoboaThemeMixin:
+
+    def dispatch(self, request, *args, **kwargs):
+        self.parameters = dict(param_tools.get_global_parameters(app="core"))
+        return super().dispatch(request, *args, **kwargs)
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context.update(
+            {
+                "theme_primary_color": self.parameters["theme_primary_color"],
+                "theme_primary_color_dark": self.parameters["theme_primary_color_dark"],
+            }
+        )
+        return context
+
+
 class LoginViewMixin:
     @cached_property
     def logger(self):
@@ -74,7 +91,7 @@ class LoginViewMixin:
         return response
 
 
-class LoginView(LoginViewMixin, auth_views.LoginView):
+class LoginView(ModoboaThemeMixin, LoginViewMixin, auth_views.LoginView):
     """Login view with 2FA support."""
 
     form_class = forms.AuthenticationForm
@@ -86,13 +103,15 @@ class LoginView(LoginViewMixin, auth_views.LoginView):
             sender="login", location="loginpage"
         )
         announcements = [announcement[1] for announcement in announcements]
-        context.update({"announcements": announcements})
+        context.update(
+            {
+                "announcements": announcements,
+            }
+        )
         return context
 
     def check_password_hash(self, user, form):
-        condition = user.is_local and param_tools.get_global_parameter(
-            "update_scheme", raise_exception=False
-        )
+        condition = user.is_local and self.parameters.get("update_scheme")
         if not condition:
             return
         # check if password scheme is correct
@@ -157,7 +176,7 @@ def dologout(request):
     return HttpResponseRedirect(reverse("core:login"))
 
 
-class PasswordResetView(auth_views.PasswordResetView):
+class PasswordResetView(ModoboaThemeMixin, auth_views.PasswordResetView):
     """Custom view to override form."""
 
     form_class = forms.PasswordResetForm
@@ -202,7 +221,7 @@ class PasswordResetView(auth_views.PasswordResetView):
         return HttpResponseRedirect(reverse("password_reset_confirm_code"))
 
 
-class VerifySMSCodeView(generic.FormView):
+class VerifySMSCodeView(ModoboaThemeMixin, generic.FormView):
     """View to verify a code received by SMS."""
 
     form_class = forms.VerifySMSCodeForm
@@ -254,7 +273,7 @@ class ResendSMSCodeView(generic.View):
         return JsonResponse({"status": "ok"})
 
 
-class TwoFactorCodeVerifyView(LoginViewMixin, generic.FormView):
+class TwoFactorCodeVerifyView(ModoboaThemeMixin, LoginViewMixin, generic.FormView):
     """View to verify a 2FA code after login."""
 
     form_class = forms.Verify2FACodeForm
diff --git a/modoboa/static/css/offline.css b/modoboa/static/css/offline.css
index d6e40df23..7fa966f42 100644
--- a/modoboa/static/css/offline.css
+++ b/modoboa/static/css/offline.css
@@ -23,11 +23,6 @@ body {
     padding: 20px;
 }
 
-.left-column {
-    background-color: #046bf8;
-    text-align: center;
-}
-
 .right-column {
     background-color: #ffffff;
     display: flex;
@@ -115,29 +110,14 @@ h2 {
     transition: background-color 0.3s;
 }
 
-.btn-primary {
-  background-color: #007bff;
-  color: white;
-}
-
 .btn:hover {
   background-color: #c9c9c9;
 }
 
-.btn-primary:hover {
-    background-color: #0056b3;
-}
-
 .footer {
     margin-top: 20px;
 }
 
-.footer a {
-    color: #007bff;
-    text-decoration: none;
-    font-size: 14px;
-}
-
 .footer a:hover {
     text-decoration: underline;
 }
@@ -155,6 +135,13 @@ h2 {
   margin-top: 5px;
 }
 
+.annoucement {
+  background-color: #e6e6e6;
+  padding: 20px;
+  border-radius: 5px;
+  text-align: left;
+}
+
 @media (max-width: 768px) {
   .container {
     flex-direction: column;
diff --git a/modoboa/templates/registration/base.html b/modoboa/templates/registration/base.html
index 78e1fd02a..1768b090b 100644
--- a/modoboa/templates/registration/base.html
+++ b/modoboa/templates/registration/base.html
@@ -8,6 +8,24 @@
     <title>{% trans "Welcome to Modoboa" %}</title>
     <link rel="icon" type="image/x-icon" href="{% static 'css/favicon.ico' %}" />
     <link rel="stylesheet" type="text/css" href="{% static 'css/offline.css' %}" />
+    <style>
+     .left-column {
+       background-color: {{ theme_primary_color }};
+       text-align: center;
+     }
+     .btn-primary {
+       background-color: {{ theme_primary_color }};
+       color: white;
+     }
+     .btn-primary:hover {
+       background-color: {{ theme_primary_color_dark }};
+     }
+     .footer a {
+       color: #{{ theme_primary_color }};
+       text-decoration: none;
+       font-size: 14px;
+     }
+    </style>
     {% block extra_css %}{% endblock %}
   </head>
   <body>
diff --git a/modoboa/templates/registration/login.html b/modoboa/templates/registration/login.html
index dddf02825..6525b45dd 100644
--- a/modoboa/templates/registration/login.html
+++ b/modoboa/templates/registration/login.html
@@ -38,7 +38,7 @@
 
 {% block sub_content %}
   {% for announcement in announcements %}
-    <div>{{ announcement|safe }}</div>
+    <div class="annoucement">{{ announcement|safe }}</div>
   {% endfor %}
 {% endblock %}