diff --git a/web/src/components/ApperanceDropdownMenu.tsx b/web/src/components/ApperanceDropdownMenu.tsx
new file mode 100644
index 00000000..5badb560
--- /dev/null
+++ b/web/src/components/ApperanceDropdownMenu.tsx
@@ -0,0 +1,53 @@
+import { Option, Select } from "@mui/joy";
+import { useTranslation } from "react-i18next";
+
+import Icon from "./Icon";
+import { APPERANCE_OPTIONS } from "../helpers/consts";
+import useApperance, { Apperance } from "../hooks/useApperance";
+
+const ApperanceDropdownMenu = () => {
+  const [apperance, setApperance] = useApperance();
+  const { t } = useTranslation();
+
+  const apperanceOptionItems = [
+    [
+      APPERANCE_OPTIONS[0],
+      <>
+        <Icon.Feather className="w-4 h-4" />
+        <p>{t("setting.apperance-option.follow-system")}</p>
+      </>,
+    ],
+    [
+      APPERANCE_OPTIONS[1],
+      <>
+        <Icon.Sun className="w-4 h-4" />
+        <p>{t("setting.apperance-option.always-light")}</p>
+      </>,
+    ],
+    [
+      APPERANCE_OPTIONS[2],
+      <>
+        <Icon.Moon className="w-4 h-4" />
+        <p>{t("setting.apperance-option.always-dark")}</p>
+      </>,
+    ],
+  ] as const;
+
+  return (
+    <Select
+      className="w-56 text-sm"
+      value={apperance}
+      onChange={(_, value) => {
+        setApperance(value as Apperance);
+      }}
+    >
+      {apperanceOptionItems.map((item) => (
+        <Option key={item[0]} value={item[0]}>
+          <span className="flex items-center gap-2">{item[1]}</span>
+        </Option>
+      ))}
+    </Select>
+  );
+};
+
+export default ApperanceDropdownMenu;
diff --git a/web/src/helpers/consts.ts b/web/src/helpers/consts.ts
index aa989d4a..3f3f383a 100644
--- a/web/src/helpers/consts.ts
+++ b/web/src/helpers/consts.ts
@@ -22,3 +22,6 @@ export const IS_FOLDING_ENABLED_DEFAULT_VALUE = true;
 export const SETTING_IS_FOLDING_ENABLED_KEY = "setting_IS_FOLDING_ENABLED";
 
 export const TAB_SPACE_WIDTH = 2;
+
+export const APPERANCE_OPTIONS = ["auto", "light", "dark"] as const;
+export const APPERANCE_OPTIONS_STORAGE_KEY = "setting_APPERANCE_OPTIONS";
diff --git a/web/src/hooks/useApperance.ts b/web/src/hooks/useApperance.ts
new file mode 100644
index 00000000..c020b388
--- /dev/null
+++ b/web/src/hooks/useApperance.ts
@@ -0,0 +1,28 @@
+import { useEffect } from "react";
+import { useColorScheme } from "@mui/joy/styles";
+
+import { APPERANCE_OPTIONS, APPERANCE_OPTIONS_STORAGE_KEY } from "../helpers/consts";
+import useLocalStorage from "./useLocalStorage";
+
+export type Apperance = typeof APPERANCE_OPTIONS[number];
+
+const useApperance = () => {
+  const [apperance, setApperance] = useLocalStorage<Apperance>(APPERANCE_OPTIONS_STORAGE_KEY, APPERANCE_OPTIONS[0]);
+
+  const { setMode } = useColorScheme();
+
+  useEffect(() => {
+    const root = document.documentElement;
+    if (apperance === "dark" || (apperance === "auto" && window.matchMedia("(prefers-color-scheme: dark)").matches)) {
+      root.classList.add("dark");
+      setMode("dark");
+    } else {
+      root.classList.remove("dark");
+      setMode("light");
+    }
+  }, [apperance]);
+
+  return [apperance, setApperance] as const;
+};
+
+export default useApperance;
diff --git a/web/src/less/auth.less b/web/src/less/auth.less
index 899d9706..d3b75c6c 100644
--- a/web/src/less/auth.less
+++ b/web/src/less/auth.less
@@ -1,5 +1,5 @@
 .page-wrapper.auth {
-  @apply flex flex-row justify-center items-center w-full h-screen bg-white;
+  @apply flex flex-row justify-center items-center w-full h-screen bg-white dark:bg-zinc-900;
 
   > .page-container {
     @apply w-80 max-w-full h-full py-4 flex flex-col justify-start items-center;
@@ -11,15 +11,19 @@
         @apply flex flex-col justify-start items-start w-full mb-4;
 
         > .title-container {
-          @apply w-full flex flex-row justify-between items-center;
+          @apply w-full flex flex-row justify-start items-center;
 
           > .logo-img {
             @apply h-20 w-auto;
           }
+
+          > .logo-text {
+            @apply text-4xl tracking-wide text-black dark:text-white;
+          }
         }
 
         > .slogan-text {
-          @apply text-sm text-gray-700;
+          @apply text-sm text-gray-700 dark:text-gray-200;
         }
       }
 
@@ -33,7 +37,7 @@
             @apply absolute top-3 left-3 px-1 leading-10 flex-shrink-0 text-base cursor-text text-gray-400 bg-transparent transition-all select-none;
 
             &.not-null {
-              @apply text-sm top-0 z-10 leading-4 bg-white rounded;
+              @apply text-sm top-0 z-10 leading-4 bg-white dark:bg-zinc-800 rounded;
             }
           }
 
@@ -41,7 +45,7 @@
             @apply py-2;
 
             > input {
-              @apply w-full py-3 px-3 text-base shadow-inner rounded-lg border border-solid border-gray-400 hover:opacity-80;
+              @apply w-full py-3 px-3 text-base shadow-inner rounded-lg border border-solid border-gray-400 hover:opacity-80 dark:bg-zinc-800 dark:text-white;
             }
           }
         }
@@ -58,7 +62,7 @@
           @apply flex flex-row justify-center items-center px-1 py-2 text-sm rounded hover:opacity-80;
 
           &.signup-btn {
-            @apply px-3;
+            @apply px-3 dark:text-white dark:opacity-70;
           }
 
           &.signin-btn {
diff --git a/web/src/locales/en.json b/web/src/locales/en.json
index fa82ca1c..b78be1b8 100644
--- a/web/src/locales/en.json
+++ b/web/src/locales/en.json
@@ -160,6 +160,11 @@
       "additional-script": "Additional script",
       "additional-style-placeholder": "Additional CSS codes",
       "additional-script-placeholder": "Additional JavaScript codes"
+    },
+    "apperance-option": {
+      "follow-system": "Follow system",
+      "always-light": "Always light",
+      "always-dark": "Always dark"
     }
   },
   "amount-text": {
diff --git a/web/src/locales/zh.json b/web/src/locales/zh.json
index 5e7cec45..14feab8d 100644
--- a/web/src/locales/zh.json
+++ b/web/src/locales/zh.json
@@ -160,6 +160,11 @@
       "additional-script": "自定义脚本",
       "additional-style-placeholder": "自定义 CSS 代码",
       "additional-script-placeholder": "自定义 JavaScript 代码"
+    },
+    "apperance-option": {
+      "follow-system": "跟随系统",
+      "always-light": "总是浅色",
+      "always-dark": "总是深色"
     }
   },
   "amount-text": {
diff --git a/web/src/pages/Auth.tsx b/web/src/pages/Auth.tsx
index 49508487..02da8c85 100644
--- a/web/src/pages/Auth.tsx
+++ b/web/src/pages/Auth.tsx
@@ -9,6 +9,7 @@ import useLoading from "../hooks/useLoading";
 import { globalService, userService } from "../services";
 import Icon from "../components/Icon";
 import toastHelper from "../components/Toast";
+import ApperanceDropdownMenu from "../components/ApperanceDropdownMenu";
 import "../less/auth.less";
 
 const validateConfig: ValidatorConfig = {
@@ -113,7 +114,8 @@ const Auth = () => {
         <div className="auth-form-wrapper">
           <div className="page-header-container">
             <div className="title-container">
-              <img className="logo-img" src="/logo-full.webp" alt="" />
+              <img className="logo-img" src="/logo.webp" alt="" />
+              <p className="logo-text">memos</p>
             </div>
             <p className="slogan-text">{t("slogan")}</p>
           </div>
@@ -160,7 +162,7 @@ const Auth = () => {
           {!systemStatus?.host && <p className="tip-text">{t("auth.host-tip")}</p>}
         </div>
         <div className="footer-container">
-          <div className="w-full flex flex-row justify-center items-center">
+          <div className="w-full flex flex-row justify-center items-center gap-2">
             <Select
               className="w-40 text-sm"
               startDecorator={<Icon.Globe className="w-4 h-auto" />}
@@ -172,6 +174,7 @@ const Auth = () => {
               <Option value="vi">Tiếng Việt</Option>
               <Option value="fr">French</Option>
             </Select>
+            <ApperanceDropdownMenu />
           </div>
         </div>
       </div>
diff --git a/web/tailwind.config.js b/web/tailwind.config.js
index 53e41590..222d4e6e 100644
--- a/web/tailwind.config.js
+++ b/web/tailwind.config.js
@@ -1,6 +1,8 @@
 /* eslint-disable no-undef */
+/** @type {import('tailwindcss').Config} */
 module.exports = {
   content: ["./index.html", "./src/**/*.{js,ts,tsx}"],
+  darkMode: "class",
   theme: {
     fontSize: {
       xs: ".75rem",