diff --git a/ui-manchette/src/components/Manchette.tsx b/ui-manchette/src/components/Manchette.tsx
index 812e25048..35791c9f4 100644
--- a/ui-manchette/src/components/Manchette.tsx
+++ b/ui-manchette/src/components/Manchette.tsx
@@ -33,7 +33,7 @@ const Manchette = ({
 }: ManchetteProps) => (
   <div className="manchette-container">
     <div
-      className="bg-ambientB-10 border-r border-grey-30"
+      className="bg-white-100 border-r border-grey-30"
       style={{ minHeight: `${INITIAL_OP_LIST_HEIGHT}px` }}
     >
       <WaypointList waypoints={waypoints} activeWaypointId={activeWaypointId} />
diff --git a/ui-manchette/src/styles/waypoint-list.css b/ui-manchette/src/styles/waypoint-list.css
index 356059420..1835f726e 100644
--- a/ui-manchette/src/styles/waypoint-list.css
+++ b/ui-manchette/src/styles/waypoint-list.css
@@ -3,7 +3,7 @@
   border-bottom-left-radius: 0.25rem;
   padding-inline: 0.5rem 1.625rem;
 
-  @apply bg-ambientB-10;
+  @apply bg-white-100;
 
   .waypoint-wrapper:last-child {
     .waypoint {