diff --git a/frontend/src/app/admin/page.tsx b/frontend/src/app/admin/page.tsx
index a56b9a3..b528550 100644
--- a/frontend/src/app/admin/page.tsx
+++ b/frontend/src/app/admin/page.tsx
@@ -60,10 +60,7 @@ export default function AdminPage() {
       <header className="bg-surface border-b border-brand-100 px-6 py-4">
         <div className="flex items-center justify-between">
           <div className="flex items-center gap-3">
-            <picture>
-              <source srcSet="/logo-dark-80h.png" media="(prefers-color-scheme: dark)" />
-              <img src="/logo-80h.png" alt="Tasteby" className="h-7" />
-            </picture>
+            <img src="/logo-80h.png" alt="Tasteby" className="h-7" />
             <span className="text-xl font-bold text-gray-500">Admin</span>
             {!isAdmin && (
               <span className="px-2 py-0.5 bg-yellow-100 text-yellow-700 rounded text-xs font-medium">읽기 전용</span>
diff --git a/frontend/src/app/globals.css b/frontend/src/app/globals.css
index 24058c3..c8fe978 100644
--- a/frontend/src/app/globals.css
+++ b/frontend/src/app/globals.css
@@ -18,7 +18,7 @@
   --brand-800: #9A4500;
   --brand-900: #6B3000;
   --brand-950: #3D1A00;
-  color-scheme: light;
+  color-scheme: only light !important;
 }
 
 @theme inline {
diff --git a/frontend/src/app/layout.tsx b/frontend/src/app/layout.tsx
index 9bb7f79..81d5a76 100644
--- a/frontend/src/app/layout.tsx
+++ b/frontend/src/app/layout.tsx
@@ -28,9 +28,10 @@ export default function RootLayout({
   children: React.ReactNode;
 }>) {
   return (
-    <html lang="ko" className="bg-background" style={{ colorScheme: "light" }} suppressHydrationWarning>
+    <html lang="ko" className="bg-background" style={{ colorScheme: "only light" }} suppressHydrationWarning>
       <head>
-        <meta name="color-scheme" content="light only" />
+        <meta name="color-scheme" content="only light" />
+        <meta name="supported-color-schemes" content="light only" />
         <link rel="preconnect" href="https://fonts.googleapis.com" />
         <link rel="preconnect" href="https://fonts.gstatic.com" crossOrigin="anonymous" />
         <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap" rel="stylesheet" />
diff --git a/frontend/src/app/page.tsx b/frontend/src/app/page.tsx
index 2402f90..a6224e1 100644
--- a/frontend/src/app/page.tsx
+++ b/frontend/src/app/page.tsx
@@ -589,10 +589,7 @@ export default function Home() {
       <header className="bg-surface/80 backdrop-blur-md border-b dark:border-gray-800 shrink-0">
         <div className="px-5 py-3 flex items-center justify-between">
           <button onClick={handleReset} className="shrink-0">
-            <picture>
-              <source srcSet="/logo-dark-80h.png" media="(prefers-color-scheme: dark)" />
-              <img src="/logo-80h.png" alt="Tasteby" className="h-7 md:h-8" />
-            </picture>
+            <img src="/logo-80h.png" alt="Tasteby" className="h-7 md:h-8" />
           </button>
 
           {/* Desktop: search + filters */}
