diff --git a/components/theme/colorModeProvider.tsx b/components/theme/colorModeProvider.tsx
index b6a3030..6ba1461 100644
--- a/components/theme/colorModeProvider.tsx
+++ b/components/theme/colorModeProvider.tsx
@@ -128,42 +128,43 @@ const lightPalette = {
     divider: '#7f8cd6',
 };
 
-// const darkPalette = {
-//     mode: 'dark' as PaletteMode, // 型キャストを追加
-//     primary: {
-//         main: '#8d95c9',
-//         dark: '#050925',
-//         light: '#373e6e',
-//     },
-//     secondary: {
-//         main: '#303560',
-//         contrastText: '#eff0f8',
-//         dark: '#262b57',
-//         light: '#373e6e',
-//     },
-//     background: {
-//         paper: '#22284F',
-//         default: '#181D3C',
-//     },
-//     text: {
-//         primary: '#eff0f8',
-//         secondary: '#99a5d6',
-//         disabled: '#5c628a',
-//     },
-//     warning: {
-//         main: '#b9891a',
-//         contrastText: 'rgba(253,252,252,0.87)',
-//     },
-//     info: { main: '#3a468f' },
-//     divider: '#373e6e',
-// };
+const darkPalette = {
+    mode: 'dark' as PaletteMode, // 型キャストを追加
+    primary: {
+        main: '#8d95c9',
+        dark: '#050925',
+        light: '#373e6e',
+    },
+    secondary: {
+        main: '#303560',
+        contrastText: '#eff0f8',
+        dark: '#262b57',
+        light: '#373e6e',
+    },
+    background: {
+        paper: '#22284F',
+        default: '#181D3C',
+    },
+    text: {
+        primary: '#eff0f8',
+        secondary: '#99a5d6',
+        disabled: '#5c628a',
+    },
+    warning: {
+        main: '#b9891a',
+        contrastText: 'rgba(253,252,252,0.87)',
+    },
+    info: { main: '#3a468f' },
+    divider: '#373e6e',
+};
 
 export default function ColorModeProvider({ children }: ColorModeProviderProps) {
     const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)');
 
     const theme = useMemo(() => createTheme({
         ...baseTheme,
-        palette: lightPalette,
+        palette: prefersDarkMode ? darkPalette : lightPalette,
+        // palette: lightPalette,
     }), [prefersDarkMode]);
 
     return <ThemeProvider theme={theme}>{children}</ThemeProvider>;