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Built-in Option
How to Enable Grok's Own Dark Mode
Grok includes a built-in dark mode. Here is how to turn it on — then see below for a more customizable alternative.
On desktop (grok.com)
Open Grok
Go to grok.com in your browser and sign in — the web app ships with a dark appearance by default.
Open Settings
Click your profile icon in the left sidebar and open Settings.
Choose your appearance
Under Appearance or Theme, select Dark or Light to override the default look.
On iPhone & Android
Open the Grok app settings
In the Grok app, tap your profile icon, then open Settings → Appearance.
Using Grok inside X
On x.com, Grok follows your X display setting: More → Settings and privacy → Accessibility, display and languages → Display → Dark.
Limitation: Grok's built-in theme options are limited to fixed palettes with no custom colors or automatic schedule. Turn Off the Lights lets you pick your own dark colors and automate switching on Grok and every other site.
Last verified: October 2026 — the settings paths above were re-tested on grok.com and on Grok inside x.com.
Side-by-Side
Grok Built-in Dark Mode vs Turn Off the Lights
Both options give you a dark Grok — the difference is how much control you keep over it.
| Feature | Grok Built-in | Turn Off the Lights |
|---|---|---|
| Dark theme on Grok | ✅ Yes — dark by default | ✅ Yes — via Night Mode |
| Custom colors | ❌ Fixed dark palette only | ✅ Background, text, links and buttons — all adjustable |
| Automatic schedule | ❌ Manual toggle only | ✅ Sunrise/sunset or custom hours |
| Works on other websites | ❌ Grok only | ✅ Same dark theme on every site you visit |
| OLED true black | ⚠️ One fixed dark palette | ✅ Optional true black for OLED battery savings |
| Mobile apps | ✅ Grok app & Grok inside X | ⚠️ Desktop browsers only |
| Price | ✅ Free | ✅ Free & open source |
Grok Dark Mode Features
Everything You Need for the Best Grok Dark Mode
Turn Off the Lights is not just a simple Grok dark mode. It is a complete browser enhancement built to give you full control over how every website looks in the dark.
Consistent Grok Dark Theme
Apply a uniform dark theme to grok.com with your chosen colors — not just the fixed default theme.
Auto-Schedule Day/Night Switch
Set sunrise/sunset switching or custom hours. Grok dark mode turns on and off automatically without any manual intervention.
One Theme for All Websites
The same dark theme applies to every website — Grok, Instagram Web, Messenger, YouTube, Reddit, and beyond.
Choose Your Own Dark Colors
Pick background, text, link, button, and border colors independently. True black for OLED or warm dark for reading comfort.
Smart Detection
Turn Off the Lights detects when Grok has already applied its own dark mode and can skip double-layering automatically.
No Grok Data Access
The extension applies visual changes only. It does not read, store, or transmit any Grok content or account data.
How It Works
Enable Grok Dark Mode in Under 30 Seconds
Turn Off the Lights is available in every major browser store and takes less than 30 seconds to install and activate. No configuration needed — it works instantly.
Install Turn Off the Lights
Add the free extension from Chrome Web Store, Firefox Add-ons, Edge Add-ons, or Opera Add-ons.
Open grok.com
Navigate to grok.com in your browser with the extension installed.
Enable Night Mode
Open Options → Night Mode tab and toggle the Night Mode switch on.
Set Schedule & Colors
Choose custom dark colors and set an automatic day/night schedule so Grok dark mode switches without any manual effort.
Browser Support
One Grok Dark Mode Extension. Every Browser.
Turn Off the Lights is available across all major desktop browsers. Install it in one browser and your Night Mode settings sync automatically to others.
⬇ Install Free — Grok Dark Mode
FAQ
Frequently Asked Questions About Grok Dark Mode
Grok has a built-in dark mode in its settings. For a fully customizable alternative with custom colors and auto-scheduling, install Turn Off the Lights and enable Night Mode in Options.
Yes — grok.com is dark by default and offers appearance options under your sidebar profile → Settings. For custom colors and an automatic schedule, use the free Turn Off the Lights extension.
Grok's dark mode has fixed colors and requires manual toggling. Turn Off the Lights offers custom colors, automatic scheduling, and the same dark theme on every other website you visit.
The Grok app and Grok inside X follow your X display or device settings. Turn Off the Lights is a browser extension for desktop browsers — on mobile the built-in options are the recommended route.
On OLED screens, true black pixels use less power. A true-black custom theme from Turn Off the Lights Night Mode saves more than any fixed dark-grey theme.
Reload the page, then check profile → Settings → Appearance. On x.com, check More → Settings → Accessibility, display and languages → Display → Dark. If dark mode is missing or too limited, Turn Off the Lights applies a dark theme to Grok in any desktop browser.
Why Turn Off the Lights
The Most Complete Grok Dark Mode Solution Available
While Grok does offer a built-in dark mode, many users searching for Grok dark mode want more control — custom colors, automatic scheduling, and a consistent dark experience that extends beyond Grok to every other website.
Grok Dark Mode with Custom Colors
Grok's built-in dark mode uses a fixed dark palette. Turn Off the Lights lets you choose your own background color — pure black for OLED, warm dark for eye comfort, or any shade you prefer. Apply the same custom theme consistently across Grok and all other sites.
The Three-Palette Method for Grok
Most users settle on one of three proven starting palettes: True Black for OLED battery savings, Warm Dark for late-night reading comfort, or Slate Grey for balanced daytime contrast. Pick the preset closest to your preference in the Night Mode options, then fine-tune background, text, and link colors independently. It is a faster path to your ideal Grok dark mode than adjusting every slider from scratch.
Automatic Grok Dark Mode Scheduling
Grok's built-in dark mode requires manual toggling. Turn Off the Lights lets you set sunrise/sunset switching or custom hours, so your dark theme turns on and off automatically across Grok and every other site.
One Extension, Dark Mode Everywhere
Grok is just one website. Turn Off the Lights applies the same Night Mode theme to every website you visit — Grok, X, news sites, Reddit, and beyond — giving you a unified dark experience across your entire browser.
Open Source, Private, and Free — Always
Turn Off the Lights collects no personal data, displays no advertising, and charges nothing. The extension is fully open-source under the GNU General Public License Version 2 (GPLv2), with its complete source code available on GitHub for anyone to inspect. It has been in continuous development since 2009 and remains one of the most trusted browser extensions available, with millions of active users across all major browsers. Stefan Van Damme is the solo developer and has maintained the extension with monthly updates for over 15 years.
Dark Mode Guides
More Dark Mode Guides
Get the same dark experience on your other favorite websites and browsers: