diff --git a/app/src/main/java/io/legado/app/App.kt b/app/src/main/java/io/legado/app/App.kt
index 868748389..b24432f92 100644
--- a/app/src/main/java/io/legado/app/App.kt
+++ b/app/src/main/java/io/legado/app/App.kt
@@ -13,6 +13,7 @@ import io.legado.app.constant.AppConst.channelIdReadAloud
 import io.legado.app.constant.AppConst.channelIdWeb
 import io.legado.app.data.AppDatabase
 import io.legado.app.lib.theme.ThemeStore
+import io.legado.app.utils.getCompatColor
 import io.legado.app.utils.getPrefBoolean
 import io.legado.app.utils.getPrefInt
 import java.util.*
@@ -63,15 +64,15 @@ class App : Application() {
     fun upThemeStore() {
         if (getPrefBoolean("isNightTheme", false)) {
             ThemeStore.editTheme(this)
-                .primaryColor(getPrefInt("colorPrimaryNight", resources.getColor(R.color.md_grey_800)))
-                .accentColor(getPrefInt("colorAccentNight", resources.getColor(R.color.md_pink_800)))
-                .backgroundColor(getPrefInt("colorBackgroundNight", resources.getColor(R.color.md_grey_800)))
+                .primaryColor(getPrefInt("colorPrimaryNight", getCompatColor(R.color.md_grey_800)))
+                .accentColor(getPrefInt("colorAccentNight", getCompatColor(R.color.md_pink_800)))
+                .backgroundColor(getPrefInt("colorBackgroundNight", getCompatColor(R.color.md_grey_800)))
                 .apply()
         } else {
             ThemeStore.editTheme(this)
-                .primaryColor(getPrefInt("colorPrimary", resources.getColor(R.color.md_grey_100)))
-                .accentColor(getPrefInt("colorAccent", resources.getColor(R.color.md_pink_600)))
-                .backgroundColor(getPrefInt("colorBackground", resources.getColor(R.color.md_grey_100)))
+                .primaryColor(getPrefInt("colorPrimary", getCompatColor(R.color.md_grey_100)))
+                .accentColor(getPrefInt("colorAccent", getCompatColor(R.color.md_pink_600)))
+                .backgroundColor(getPrefInt("colorBackground", getCompatColor(R.color.md_grey_100)))
                 .apply()
         }
     }
diff --git a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
index 92e11f0a3..a6a2b451c 100644
--- a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
@@ -1,15 +1,86 @@
 package io.legado.app.ui.config
 
+import android.content.SharedPreferences
 import android.os.Bundle
+import androidx.appcompat.app.AlertDialog
 import androidx.preference.PreferenceFragmentCompat
+import io.legado.app.App
 import io.legado.app.R
+import io.legado.app.lib.theme.ColorUtils
+import io.legado.app.utils.getCompatColor
+import io.legado.app.utils.getPrefBoolean
+import io.legado.app.utils.putPrefInt
+import io.legado.app.utils.upTint
 
 
-class ThemeConfigFragment : PreferenceFragmentCompat() {
+class ThemeConfigFragment : PreferenceFragmentCompat(), SharedPreferences.OnSharedPreferenceChangeListener {
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         addPreferencesFromResource(R.xml.pref_config_theme)
     }
 
+    override fun onResume() {
+        super.onResume()
+        preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
+    }
+
+    override fun onPause() {
+        preferenceManager.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
+        super.onPause()
+    }
+
+    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+        sharedPreferences ?: return
+        when (key) {
+            "colorPrimary", "colorAccent", "colorBackground" -> if (!ColorUtils.isColorLight(
+                    sharedPreferences.getInt(
+                        "colorBackground",
+                        App.INSTANCE.getCompatColor(R.color.md_grey_100)
+                    )
+                )
+            ) {
+                AlertDialog.Builder(App.INSTANCE)
+                    .setTitle("白天背景太暗")
+                    .setMessage("将会恢复默认背景？")
+                    .setPositiveButton(R.string.ok) { dialog, which ->
+                        App.INSTANCE.putPrefInt("colorBackground", App.INSTANCE.getCompatColor(R.color.md_grey_100))
+                        upTheme(false)
+                    }
+                    .setNegativeButton(R.string.cancel) { dialogInterface, i -> upTheme(false) }
+                    .show().upTint
+            } else {
+                upTheme(false)
+            }
+            "colorPrimaryNight", "colorAccentNight", "colorBackgroundNight" -> if (ColorUtils.isColorLight(
+                    sharedPreferences.getInt(
+                        "colorBackgroundNight",
+                        App.INSTANCE.getCompatColor(R.color.md_grey_800)
+                    )
+                )
+            ) {
+                AlertDialog.Builder(App.INSTANCE)
+                    .setTitle("夜间背景太亮")
+                    .setMessage("将会恢复默认背景？")
+                    .setPositiveButton(R.string.ok) { dialog, which ->
+                        App.INSTANCE.putPrefInt(
+                            "colorBackgroundNight",
+                            App.INSTANCE.getCompatColor(R.color.md_grey_800)
+                        )
+                        upTheme(true)
+                    }
+                    .setNegativeButton(R.string.cancel) { dialogInterface, i -> upTheme(true) }
+                    .show()
+            } else {
+                upTheme(true)
+            }
+        }
+
+    }
+
+    private fun upTheme(isNightTheme: Boolean) {
+        if (App.INSTANCE.getPrefBoolean("isNightTheme", false) == isNightTheme) {
+            App.INSTANCE.upThemeStore()
+        }
+    }
 
 }
\ No newline at end of file