diff --git a/cas/cas-server/src/main/config/cas-server-application-recette.yml b/cas/cas-server/src/main/config/cas-server-application-recette.yml
index 30f4747dae11dc8e9abb34c786caba180adae9b3..15529b76763d03c804c036468d820a653c246f30 100644
--- a/cas/cas-server/src/main/config/cas-server-application-recette.yml
+++ b/cas/cas-server/src/main/config/cas-server-application-recette.yml
@@ -153,6 +153,7 @@ server-identity:
 theme:
   primary: '#ff4a54'
   secondary: '#241f63'
+  background: '#0F0D2D'
 
 logging:
   config: src/main/config/logback-dev.xml
diff --git a/deployment/environments/group_vars/all/vitamui_vars.yml b/deployment/environments/group_vars/all/vitamui_vars.yml
index b2ebbf571c38edf45a2e920854892e0a702fd83c..bfa47474a709aa028931d37fcaa2650320208ad4 100755
--- a/deployment/environments/group_vars/all/vitamui_vars.yml
+++ b/deployment/environments/group_vars/all/vitamui_vars.yml
@@ -408,6 +408,7 @@ vitamui_platform_informations:
       vitamui_tertiary: "#C22A40"
       vitamui_header_footer: "#ffffff"
       vitamui_background: "#F5F7FC"
+      cas_background: "#0F0D2D"
   platform_name: VITAM-UI
   customer:
     technical_referent_email: contact@programmevitam.fr
diff --git a/deployment/roles/vitamui/templates/cas-server/application.yml.j2 b/deployment/roles/vitamui/templates/cas-server/application.yml.j2
index d7ff22da063636ceada83e521306aeb734fcc7ac..0da7c75ccd600e915c8ab1e947b9a13f892cc109 100644
--- a/deployment/roles/vitamui/templates/cas-server/application.yml.j2
+++ b/deployment/roles/vitamui/templates/cas-server/application.yml.j2
@@ -184,7 +184,7 @@ theme:
   vitamui-logo-large: {{ vitamui.cas_server.theme.vitamui_logo_large }}
   primary: '{{ vitamui_platform_informations.theme.theme_colors.vitamui_primary }}'
   secondary: '{{ vitamui_platform_informations.theme.theme_colors.vitamui_secondary }}'
-  background: '{{ vitamui_platform_informations.theme.theme_colors.vitamui_background }}'
+  background: '{{ vitamui_platform_informations.theme.theme_colors.cas_background }}'
 
 opentracing:
   jaeger: