diff --git a/app/Services/PurchaseService.php b/app/Services/PurchaseService.php
index 5918eb6..de0e9f9 100644
--- a/app/Services/PurchaseService.php
+++ b/app/Services/PurchaseService.php
@@ -311,9 +311,9 @@ public function bulkUpdateTaxReceived(array $ids, bool $taxInvoiceReceived): int
      *
      * @return array{
      *     summary: array{current_month_total: float, previous_month_total: float, change_rate: float, count: int},
-     *     monthly_trend: array<array{month: string, amount: float}>,
-     *     by_type: array<array{type: string, label: string, amount: float, ratio: float}>,
-     *     items: array<array{id: int, date: string, vendor_name: string, amount: float, type: string, type_label: string}>
+     *     monthly_trend: array<array{label: string, amount: float}>,
+     *     by_type: array<array{type: string, type_label: string, amount: float, ratio: float, color: string}>,
+     *     items: array<array{id: int, purchase_date: string, vendor_name: string, amount: float, type: string, type_label: string}>
      * }
      */
     public function dashboardDetail(): array
@@ -360,7 +360,7 @@ public function dashboardDetail(): array
                 ->sum('total_amount');
 
             $monthlyTrend[] = [
-                'month' => $monthStart->format('Y-m'),
+                'label' => $monthStart->format('n').'월',  // "1월", "2월" 형식
                 'amount' => (float) $amount,
             ];
         }
@@ -376,13 +376,25 @@ public function dashboardDetail(): array
         $byType = [];
         $totalAmount = $byTypeRaw->sum('amount');
 
+        // 유형별 색상 매핑
+        $typeColors = [
+            'raw_material' => '#60A5FA',    // 원자재 - 파랑
+            'sub_material' => '#34D399',    // 부자재 - 초록
+            'packaging' => '#FBBF24',       // 포장재 - 노랑
+            'consumable' => '#F87171',      // 소모품 - 빨강
+            'unset' => '#9CA3AF',           // 미설정 - 회색
+        ];
+        $colorIndex = 0;
+        $defaultColors = ['#60A5FA', '#34D399', '#FBBF24', '#F87171', '#A78BFA', '#F472B6'];
+
         foreach ($byTypeRaw as $item) {
             $type = $item->purchase_type ?? 'unset';
             $byType[] = [
                 'type' => $type,
-                'label' => Purchase::PURCHASE_TYPES[$type] ?? '미설정',
+                'type_label' => Purchase::PURCHASE_TYPES[$type] ?? '미설정',
                 'amount' => (float) $item->amount,
                 'ratio' => $totalAmount > 0 ? round(($item->amount / $totalAmount) * 100, 1) : 0,
+                'color' => $typeColors[$type] ?? $defaultColors[$colorIndex++ % count($defaultColors)],
             ];
         }
 
@@ -401,7 +413,7 @@ public function dashboardDetail(): array
 
                 return [
                     'id' => $purchase->id,
-                    'date' => $purchase->purchase_date->format('Y-m-d'),
+                    'purchase_date' => $purchase->purchase_date->format('Y-m-d'),
                     'vendor_name' => $purchase->client?->name ?? '-',
                     'amount' => (float) $purchase->total_amount,
                     'type' => $type,
@@ -412,8 +424,8 @@ public function dashboardDetail(): array
 
         return [
             'summary' => [
-                'current_month_total' => (float) $currentMonthTotal,
-                'previous_month_total' => (float) $previousMonthTotal,
+                'current_month_amount' => (float) $currentMonthTotal,
+                'previous_month_amount' => (float) $previousMonthTotal,
                 'change_rate' => $changeRate,
                 'count' => $currentMonthCount,
             ],