Dark Mode and Appearance Settings on macOS (Complete Guide)

Dark Mode transforms macOS from a bright, white interface to a dark, low-contrast theme designed to reduce eye strain in low-light environments and improve battery life on OLED displays. Beyond simple dark/light switching, macOS offers extensive appearance customization — accent colors, highlight colors, sidebar styling, automatic switching based on time of day, and per-app appearance overrides.

Getting appearance settings right improves comfort during long work sessions and makes your Mac feel personalized. This guide covers every appearance option in macOS Sonoma and Sequoia, showing you how to enable and customize Dark Mode, set up automatic switching, configure accent colors, and troubleshoot apps that don't respect your appearance preferences.

Table of Contents

• Quick Dark Mode Settings Summary
• How Dark Mode Works on macOS
• Enable and Disable Dark Mode
• Automatic Dark Mode Switching
• Accent Color and Highlight Color
• Sidebar Icon Size and Style
• Per-App Appearance Overrides
• Dark Mode in Safari and Web Content
• Wallpaper and Dynamic Desktops
• Troubleshooting Dark Mode Issues
• Third-Party Dark Mode Tools
• FAQ
• Conclusion

Quick Dark Mode Settings Summary

How Dark Mode Works on macOS

Dark Mode is a system-wide appearance setting that changes the color scheme of macOS interface elements from light backgrounds with dark text to dark backgrounds with light text. It affects:

• System UI: Menu bar, Dock, sidebars, toolbars, windows, and buttons
• Built-in apps: Finder, Mail, Safari, Messages, Calendar, Notes, and all Apple apps support Dark Mode natively
• Third-party apps: Apps built using standard macOS UI frameworks (AppKit, SwiftUI) inherit Dark Mode automatically. Apps that use custom interfaces must implement Dark Mode support manually.

Why use Dark Mode:

• Reduced eye strain: Dark backgrounds with light text are easier on the eyes in low-light environments, reducing glare and discomfort during extended use.
• Better battery life: On MacBooks with OLED screens (not currently available, but on iPhones and iPads), dark pixels consume less power than bright ones.
• Improved focus: Dark Mode reduces visual clutter and creates a more immersive environment for creative work, reading, or media consumption.
• Aesthetic preference: Many users simply prefer the look of Dark Mode.

How apps adapt:

When you enable Dark Mode, macOS sets a system-wide appearance flag. Apps that support Dark Mode detect this flag and switch their color schemes automatically. Apps that don't support Dark Mode remain in Light Mode even when the system is dark, creating visual inconsistency.

Enable and Disable Dark Mode

Step 1: Click the Apple menu () > System Settings.

Step 2: Click Appearance in the left sidebar.

Step 3: At the top, you'll see three appearance options:

• Light — Traditional macOS interface with light backgrounds
• Dark — Dark interface with reduced brightness
• Auto — Automatically switches between Light and Dark based on time of day

Step 4: Click Dark to enable Dark Mode immediately. The interface changes instantly.

Quick toggle using Control Center (macOS Ventura and later):

Step 1: Click the Control Center icon in the menu bar (looks like two toggle switches).

Step 2: Click Display (or Screen Brightness).

Step 3: Click the Appearance button to toggle between Light and Dark.

Quick toggle using keyboard shortcut (requires third-party app):

macOS doesn't include a built-in keyboard shortcut for toggling Dark Mode, but you can create one using Shortcuts app or third-party tools like Night Owl.

Using Shortcuts app:

Step 1: Open the Shortcuts app (search in Spotlight).

Step 2: Click + to create a new shortcut.

Step 3: Search for "Set Appearance" and add it to your shortcut.

Step 4: Configure it to toggle between Light and Dark.

Step 5: Assign a keyboard shortcut by clicking the shortcut's info button and enabling "Use as Quick Action."

Automatic Dark Mode Switching

Automatic Dark Mode switches between Light and Dark based on a schedule, typically sunrise and sunset in your location.

How to enable:

Step 1: Go to System Settings > Appearance.

Step 2: Click Auto.

Step 3: macOS defaults to switching at sunset and sunrise based on your location (requires Location Services to be enabled).

Set a custom schedule:

If you want Dark Mode to activate at a specific time regardless of sunrise/sunset:

Step 1: With Auto selected, click Options (appears below the Auto button on some macOS versions).

Step 2: Choose Custom and set your preferred times:

• Light appears at: e.g., 7:00 AM
• Dark appears at: e.g., 7:00 PM

Step 3: Click Done.

How it works:

macOS monitors the time and automatically switches the system appearance at the scheduled times. Apps that support Dark Mode transition immediately. You can manually override the automatic setting at any time by selecting Light or Dark explicitly.

Tip: If you work late at night, consider setting Dark Mode to activate earlier (e.g., 6:00 PM) to reduce eye strain in the evening.

Location Services requirement:

For "Sunset to Sunrise" to work, Location Services must be enabled:

Step 1: Go to System Settings > Privacy & Security > Location Services.

Step 2: Ensure Location Services is On.

Step 3: Scroll down to System Services and click it.

Step 4: Ensure Time Zone is checked (this allows macOS to determine sunrise/sunset times based on your location).

Accent Color and Highlight Color

Accent colors are used for buttons, selection highlights, and interactive elements throughout macOS. You can customize these to personalize your Mac's appearance.

Change accent color:

Step 1: Go to System Settings > Appearance.

Step 2: Under Accent color, click one of the color options:

• Multicolor — macOS chooses accent colors based on context (e.g., blue for most system elements, but app-specific colors in some cases)
• Blue — macOS default (matches the classic Mac OS X look)
• Purple, Pink, Red, Orange, Yellow, Green — Custom accent colors
• Graphite — A neutral gray accent color (classic macOS look)

Step 3: The change applies immediately across all interface elements.

What accent color affects:

• Button colors (e.g., default buttons in dialogs, Save/Cancel buttons)
• Selected text highlights
• Selected sidebar items in Finder and apps
• Checkbox and radio button colors
• Focus rings around active form fields

Change highlight color:

Highlight color is the background color used when you select text in documents and text fields.

Step 1: In System Settings > Appearance, scroll down to Highlight color.

Step 2: Click the dropdown and choose:

• Accent color — Uses the same color as your accent color (recommended for consistency)
• Custom color — Click to open a color picker and choose any color

Step 3: The change applies immediately. Try selecting text in a document to see the new highlight color.

Tip: Using a consistent accent and highlight color creates a more cohesive visual experience. Most users should keep both set to the same color.

Sidebar Icon Size and Style

macOS lets you control the size of icons in Finder sidebars and app sidebars.

Step 1: Go to System Settings > Appearance.

Step 2: Under Sidebar icon size, choose:

• Small — Compact sidebar, fits more items vertically
• Medium — Default size, balanced
• Large — Larger icons, easier to identify at a glance

Step 3: Open a Finder window to see the change. The sidebar icons resize immediately.

What this affects:

• Finder sidebar (Favorites, iCloud Drive, Devices, Tags)
• App sidebars in Mail, Notes, Reminders, and other Apple apps
• Does not affect Dock icon size (change Dock size separately in System Settings > Desktop & Dock)

Accessibility note: Users with vision impairments may benefit from Large icons for easier navigation.

Per-App Appearance Overrides

Some apps let you override the system-wide appearance setting and force them to always use Light or Dark Mode, regardless of the system setting.

Safari per-app appearance:

Step 1: Open Safari > Settings (or Preferences on older macOS).

Step 2: Click the Appearance tab.

Step 3: Under "Theme," choose:

• System — Follow macOS appearance setting (default)
• Light — Always use Light Mode in Safari
• Dark — Always use Dark Mode in Safari

Step 4: Close the settings window. Safari switches to the selected appearance.

Mail per-app appearance:

Step 1: Open Mail > Settings > Viewing.

Step 2: Under "Use dark backgrounds for messages," you can toggle whether email content uses dark backgrounds when in Dark Mode.

Note: This only affects how emails are displayed, not the Mail app interface itself.

Third-party apps:

Some third-party apps include their own appearance settings. Check the app's preferences:

Step 1: Open the app.

Step 2: Go to App Name > Settings (or Preferences).

Step 3: Look for an "Appearance," "Theme," or "Interface" section.

Step 4: If available, choose Light, Dark, or Auto.

Apps that don't support Dark Mode:

Older or poorly-maintained apps may not support Dark Mode. These apps always display in Light Mode. You can:

• Check for app updates (developers may have added Dark Mode support)
• Contact the developer and request Dark Mode support
• Use third-party tools (see Third-Party Dark Mode Tools below)

Dark Mode in Safari and Web Content

Safari supports Dark Mode, but web content (the actual websites you visit) may or may not adapt to Dark Mode depending on how the site is designed.

Safari Dark Mode interface:

When macOS is in Dark Mode, Safari's interface (tabs, toolbar, sidebar) automatically switches to dark. This is controlled by the system appearance setting.

Force Dark Mode for web content:

Some websites don't provide a dark theme. You can force dark rendering using Safari extensions or Reader Mode.

Using Reader Mode:

Step 1: Visit a website with text-heavy content (articles, blog posts).

Step 2: Click the Reader Mode icon in the address bar (looks like stacked lines).

Step 3: Click the AA icon in the address bar.

Step 4: Choose a dark background color (black or dark gray).

Step 5: The article content displays in dark mode with improved readability.

Using Safari extensions for dark mode:

Extensions like Dark Reader or Night Eye force dark mode on all websites by inverting colors or applying custom dark stylesheets.

Step 1: Open Safari > Settings > Extensions.

Step 2: Click Get Extensions (opens the Safari Extensions gallery).

Step 3: Search for "Dark Reader" and install it.

Step 4: Enable the extension and configure it to force dark mode on websites that don't support it natively.

Warning: Forcing dark mode on websites can sometimes break design elements, hide text, or cause visual glitches. Use it selectively or whitelist problematic sites.

Wallpaper and Dynamic Desktops

macOS includes dynamic wallpapers that change based on the time of day or appearance mode.

Set a dynamic desktop wallpaper:

Step 1: Right-click on the desktop and select Change Wallpaper (or go to System Settings > Wallpaper).

Step 2: Choose a wallpaper from the Dynamic category (if available on your macOS version).

Step 3: Dynamic wallpapers automatically change throughout the day, showing sunrise, daytime, sunset, and nighttime versions.

Light and Dark wallpaper pairs:

Some wallpapers come in Light and Dark variants. macOS automatically switches between them based on your appearance setting.

Step 1: In System Settings > Wallpaper, select a wallpaper.

Step 2: If the wallpaper has both Light and Dark versions, macOS switches between them when you toggle Dark Mode.

Allow wallpaper tinting in windows:

macOS can subtly tint window backgrounds based on the dominant color of your wallpaper.

Step 1: Go to System Settings > Appearance.

Step 2: Toggle Allow wallpaper tinting in windows on or off.

Step 3: When enabled, macOS applies a very subtle tint to sidebars and windows that complements your wallpaper's colors.

Note: This effect is extremely subtle and most users won't notice it. It's purely aesthetic.

Troubleshooting Dark Mode Issues

Issue: App doesn't switch to Dark Mode

Cause: The app doesn't support Dark Mode, or its appearance setting is overridden.

Fix:

Step 1: Check if the app has a built-in appearance setting. Open the app's preferences and look for "Appearance," "Theme," or "Interface."

Step 2: If the setting is set to "Light," change it to "Dark" or "Auto."

Step 3: If no setting exists, check for app updates. Developers may have added Dark Mode support in newer versions.

Step 4: If the app still doesn't support Dark Mode, consider using a third-party tool like NightOwl or contacting the developer.

Issue: Text is hard to read in Dark Mode

Cause: Some apps or websites use low-contrast colors in Dark Mode, making text difficult to read.

Fix:

Step 1: Increase display contrast. Go to System Settings > Accessibility > Display.

Step 2: Enable Increase contrast to make text stand out more.

Step 3: For websites, use Safari Reader Mode or a dark mode extension with adjustable contrast settings.

Issue: Menu bar and Dock are bright in Dark Mode

Cause: Some wallpapers force the menu bar and Dock to use light colors for contrast.

Fix:

Step 1: Right-click the desktop and select Change Wallpaper.

Step 2: Choose a different wallpaper, preferably a dark one.

Step 3: Alternatively, you can force the menu bar to always be dark by choosing a pure black or very dark wallpaper.

Issue: Automatic Dark Mode doesn't switch at the right time

Cause: Location Services may be disabled, or the time zone is incorrect.

Fix:

Step 1: Go to System Settings > Privacy & Security > Location Services.

Step 2: Ensure Location Services is On and System Services > Time Zone is checked.

Step 3: Go to System Settings > General > Date & Time and ensure Set time zone automatically using current location is enabled.

Step 4: If you're using a custom schedule, verify the times are set correctly in System Settings > Appearance > Auto > Options.

Issue: Dark Mode is too dark / hard to see interface elements

Cause: Individual preference — some users find Dark Mode too extreme.

Fix:

Step 1: Use Light Mode during the day and Auto Mode to switch only at night.

Step 2: Adjust display brightness to a comfortable level (use F1/F2 keys or Control Center).

Step 3: Some third-party apps like Gray offer "medium gray" themes that are less extreme than full Dark Mode.

Third-Party Dark Mode Tools

NightOwl:

A free menu bar app that adds a quick toggle for Dark Mode and allows per-app appearance overrides.

Download: https://nightowl.kramser.xyz/

Features:

• Toggle Dark Mode with a click or keyboard shortcut
• Set different appearance settings for different apps
• Sunrise/sunset scheduling with location awareness

Gray:

A paid app that offers "gray mode" — a middle ground between Light and Dark that's easier on the eyes than full Dark Mode.

Download: https://graymac.app/

Features:

• Custom gray color schemes
• Per-app appearance settings
• Automatic switching based on ambient light (requires compatible Macs with ambient light sensors)

Dark Reader (Safari extension):

Forces dark mode on websites that don't support it natively.

Download: Install from Safari Extensions gallery or https://darkreader.org/

Features:

• Inverts website colors to create dark themes
• Customizable brightness, contrast, and sepia filters
• Whitelist for sites that don't work well with forced dark mode

Lunar:

A display brightness and color control app with advanced Dark Mode scheduling.

Download: https://lunar.fyi/

Features:

• Adaptive brightness based on ambient light and time of day
• Custom Dark Mode schedules synced with brightness changes
• Per-display appearance settings for multi-monitor setups

FAQ

Does Dark Mode save battery life on MacBooks?

On LCD displays (most current MacBooks), Dark Mode provides minimal battery savings because the backlight remains on regardless of content color. On OLED displays (iPhones, iPads, potentially future MacBooks), dark pixels consume significantly less power, providing meaningful battery savings. The primary benefit on current MacBooks is reduced eye strain, not battery life.

Can I use Dark Mode only in certain apps?

macOS doesn't include a built-in per-app Dark Mode setting, but third-party tools like NightOwl and Gray allow you to override appearance settings on a per-app basis. Some apps also include their own appearance settings in their preferences.

Why do some websites still have white backgrounds in Dark Mode?

Websites control their own appearance using CSS stylesheets. Unless a website explicitly supports Dark Mode (using CSS media queries or JavaScript), it displays in its default light theme. You can force dark rendering using Safari extensions like Dark Reader.

How do I make the menu bar always dark, even in Light Mode?

You can't force the menu bar to be dark independently of the system appearance setting using built-in macOS settings. However, using a very dark wallpaper can cause the menu bar to appear dark in Light Mode for contrast. Third-party apps like NightOwl can also override menu bar appearance.

Can I schedule different Dark Mode times for weekdays and weekends?

No, macOS's built-in Auto mode uses a single schedule for all days. Third-party apps like NightOwl or Lunar offer more advanced scheduling options, including different schedules for different days of the week.

Why does my Mac switch to Dark Mode earlier than sunset?

If you're using "Sunset to Sunrise" scheduling, ensure Location Services is enabled and your time zone is set correctly. macOS uses your location to calculate accurate sunrise and sunset times. If these settings are correct but the timing seems off, try switching to a custom schedule and manually set the times you prefer.

Conclusion

Dark Mode is one of macOS's most popular features, offering both aesthetic appeal and practical benefits for extended computer use. Whether you prefer Dark Mode full-time, Light Mode during the day with automatic switching at night, or custom per-app settings, macOS provides the flexibility to configure appearance exactly how you want.

Start with the built-in settings — enable Auto mode with sunset/sunrise scheduling for most users, or manually toggle Dark Mode if you prefer full control. Customize accent colors to personalize the interface, and audit third-party apps to ensure they support Dark Mode. For advanced users, third-party tools like NightOwl and Gray offer per-app overrides, custom color schemes, and more granular scheduling options.

Remember that appearance settings are personal — there's no "right" configuration. Experiment with different combinations of Dark Mode timing, accent colors, and sidebar styles to find what works best for your workflow and environment.