How to Enable Dark Mode in Tailwind CSS ? Last Updated : 24 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Tailwind CSS offers built-in features for enabling dark mode, allowing developers to create a dark-themed version of their web pages. By configuring the dark mode setting in the Tailwind configuration file and using the dark class, specific elements can seamlessly switch to dark-themed styles.There are mainly two approaches for enabling dark mode in Tailwind CSS : Table of ContentUsing Dark Class ConfigurationUsing JavaScript Toggle FunctionalityApproach 1: Using Dark Class ConfigurationThe Dark Class Configuration approach in Tailwind CSS enables dark mode by adding the darkMode: 'class' setting in the configuration file. This allows applying dark-specific styles using the `dark:` prefix, toggling themes by adding the dark class to elements. Syntax<script> tailwind.config = { darkMode: 'class', } </script> Example 1: In this example we are using Tailwind CSS to implement dark mode. The page content features a title and paragraph, with the background and text colors dynamically adjusting between light and dark themes. HTML <!doctype html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="https://cdn.tailwindcss.com/3.4.16"> </script> <script src= "https://cdn.tailwindcss.com/[email protected],[email protected],[email protected],[email protected]"> </script> </head> <script> tailwind.config = { darkMode: 'class', } </script> <style> body { color: #fff; height: 800px; } .bg-white { height: 100%; } </style> <body class="dark"> <div class="bg-white dark:bg-gray-900"> <h1 class="text-gray-900 dark:text-white"> GeeksforGeeks</h1> <p class="text-gray-600 dark:text-gray-300"> GeeksforGeeks is Computer Science Education Portal. </p> <p>GeeksforGeeks</p> </div> </body> </html> Output: How to enable dark mode in Tailwind CSS?Approach 2: Using JavaScript Toggle FunctionalityThe JavaScript Toggle Functionality approach enables dark mode by toggling a custom class (e.g., .dark-mode) on elements. JavaScript functions dynamically add or remove this class, allowing users to switch between light and dark themes with a button click.Syntaxonclick="document.body.classList.toggle('dark-mode')"Example : In this example we example toggles dark mode using a custom .dark-mode class defined in the <style> section. Clicking the "Switch theme" button toggles the dark background and text color on the <body> element. HTML <!doctype html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="https://cdn.tailwindcss.com/3.4.16"> </script> <script src= "https://cdn.tailwindcss.com/[email protected],[email protected],[email protected],[email protected]"> </script> </head> <style> .dark-mode { background-color: rgb(12, 12, 23); color: white; } </style> <body class="dark-mode"> <div class="justify-center grid items-center h-screen"> <div class="bg-dark-mode-white"> <p class="text-dark-mode-black">GeeksForGeeks</p> <button class="border p-2" onclick="document.body.classList.toggle('dark-mode')"> Switch theme </button> </div> </div> </body> </html> Output: enable dark mode in Tailwind CSS Using JavaScript Toggle Functionality Comment More infoAdvertise with us Next Article CSS Introduction N narendra4narendra Follow Improve Article Tags : Web Technologies CSS Tailwind CSS Tailwind CSS-Questions Similar Reads CSS Tutorial CSS stands for Cascading Style Sheets. 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