diff --git a/client/src/pages/Admin.tsx b/client/src/pages/Admin.tsx
index 61c0391..8527edc 100644
--- a/client/src/pages/Admin.tsx
+++ b/client/src/pages/Admin.tsx
@@ -20,9 +20,9 @@ export default function Admin() {
     const autres = apprenants.filter(a => a.fonction === "autre").length;
 
     return [
-      { name: "Directeurs", value: directeurs, color: "#3b82f6" },
-      { name: "Chefs de service", value: chefsService, color: "#10b981" },
-      { name: "Autres", value: autres, color: "#f59e0b" },
+      { name: "Directeurs", value: directeurs, color: "#93c5fd" },
+      { name: "Chefs de service", value: chefsService, color: "#6ee7b7" },
+      { name: "Autres", value: autres, color: "#fcd34d" },
     ].filter(item => item.value > 0);
   }, [apprenants]);
 
@@ -36,7 +36,7 @@ export default function Admin() {
       etablissementCounts[code] = (etablissementCounts[code] || 0) + 1;
     });
 
-    const colors = ["#3b82f6", "#10b981", "#f59e0b", "#ef4444", "#8b5cf6", "#ec4899", "#06b6d4", "#84cc16", "#f97316", "#6366f1"];
+    const colors = ["#93c5fd", "#6ee7b7", "#fcd34d", "#fca5a5", "#c4b5fd", "#f9a8d4", "#67e8f9", "#bef264", "#fdba74", "#a5b4fc"];
     
     return Object.entries(etablissementCounts)
       .map(([name, value], index) => ({
@@ -53,40 +53,40 @@ export default function Admin() {
       title: "Formations actives",
       value: formations?.filter(f => f.actif).length || 0,
       icon: GraduationCap,
-      gradient: "from-blue-500 to-blue-600",
-      borderColor: "border-l-blue-500",
-      bgColor: "bg-blue-50/50",
-      iconBg: "bg-gradient-to-br from-blue-500 to-blue-600",
+      gradient: "from-blue-300 to-blue-400",
+      borderColor: "border-l-blue-400",
+      bgColor: "bg-blue-50/80",
+      iconBg: "bg-gradient-to-br from-blue-300 to-blue-400",
       loading: loadingFormations,
     },
     {
       title: "Séquences ouvertes",
       value: sequences?.filter(s => s.statut === "ouverte").length || 0,
       icon: Calendar,
-      gradient: "from-green-500 to-emerald-600",
-      borderColor: "border-l-green-500",
-      bgColor: "bg-green-50/50",
-      iconBg: "bg-gradient-to-br from-green-500 to-emerald-600",
+      gradient: "from-green-300 to-emerald-400",
+      borderColor: "border-l-green-400",
+      bgColor: "bg-green-50/80",
+      iconBg: "bg-gradient-to-br from-green-300 to-emerald-400",
       loading: loadingSessions,
     },
     {
       title: "Apprenants inscrits",
       value: apprenants?.length || 0,
       icon: Users,
-      gradient: "from-purple-500 to-purple-600",
-      borderColor: "border-l-purple-500",
-      bgColor: "bg-purple-50/50",
-      iconBg: "bg-gradient-to-br from-purple-500 to-purple-600",
+      gradient: "from-purple-300 to-purple-400",
+      borderColor: "border-l-purple-400",
+      bgColor: "bg-purple-50/80",
+      iconBg: "bg-gradient-to-br from-purple-300 to-purple-400",
       loading: loadingApprenants,
     },
     {
       title: "Séquences terminées",
       value: sequences?.filter(s => s.statut === "terminee").length || 0,
       icon: CheckCircle,
-      gradient: "from-orange-500 to-orange-600",
-      borderColor: "border-l-orange-500",
-      bgColor: "bg-orange-50/50",
-      iconBg: "bg-gradient-to-br from-orange-500 to-orange-600",
+      gradient: "from-orange-300 to-orange-400",
+      borderColor: "border-l-orange-400",
+      bgColor: "bg-orange-50/80",
+      iconBg: "bg-gradient-to-br from-orange-300 to-orange-400",
       loading: loadingSessions,
     },
   ];
@@ -96,7 +96,7 @@ export default function Admin() {
       <div className="space-y-8 animate-in fade-in duration-500">
         <div className="flex items-center justify-between">
           <div>
-            <h1 className="text-4xl font-bold tracking-tight bg-gradient-to-r from-blue-600 to-purple-600 bg-clip-text text-transparent">
+            <h1 className="text-4xl font-bold tracking-tight bg-gradient-to-r from-blue-400 to-purple-400 bg-clip-text text-transparent">
               Tableau de bord
             </h1>
             <p className="text-muted-foreground mt-2 text-lg">
diff --git a/client/src/pages/AdminQuestionnaireSuivi.tsx b/client/src/pages/AdminQuestionnaireSuivi.tsx
index 8b7387e..02107b7 100644
--- a/client/src/pages/AdminQuestionnaireSuivi.tsx
+++ b/client/src/pages/AdminQuestionnaireSuivi.tsx
@@ -152,7 +152,7 @@ export default function AdminQuestionnaireSuivi() {
                       outerRadius={80}
                       label={(entry) => `${entry.formationNom}: ${entry.tauxReponse}%`}
                     >
-                      {statsByFormation.map((entry, index) => (
+                      {statsByFormation && Array.isArray(statsByFormation) && statsByFormation.map((entry, index) => (
                         <Cell key={`cell-${index}`} fill={COLORS[index % COLORS.length]} />
                       ))}
                     </Pie>
@@ -201,7 +201,7 @@ export default function AdminQuestionnaireSuivi() {
                       </tr>
                     </thead>
                     <tbody>
-                      {statsByFormateur.map((formateur) => (
+                      {statsByFormateur && Array.isArray(statsByFormateur) && statsByFormateur.map((formateur) => (
                         <tr key={formateur.formateurId} className="border-b">
                           <td className="p-2">{formateur.formateurNom}</td>
                           <td className="p-2 text-center">{formateur.totalEnvois}</td>
diff --git a/todo.md b/todo.md
index 22e0e94..8f2c1e2 100644
--- a/todo.md
+++ b/todo.md
@@ -1013,7 +1013,7 @@
 - [x] Implémenter indicateur de page active
 - [x] Améliorer les couleurs et gradients
 - [x] Tester sur sandbox
-- [ ] Déployer après validation utilisateur
+- [x] Déployer après validation utilisateur
 
 ## Correction bug page émargement formateur
 
@@ -1021,3 +1021,16 @@
 - [x] Identifier la requête tRPC qui échoue
 - [x] Corriger le bug
 - [x] Tester la correction
+
+## Harmonisation tableau de bord avec palette pastel
+
+- [x] Adapter les couleurs des cartes statistiques en pastel
+- [x] Harmoniser les gradients avec le menu latéral
+- [x] Tester sur sandbox
+
+## Correction bug page suivi questionnaires
+
+- [x] Analyser l'erreur "Cannot convert undefined or null to object"
+- [x] Identifier la requête tRPC qui échoue
+- [x] Corriger le bug
+- [x] Tester la correction