Change Fill Color of React Icons: Step-by-Step Tutorial (2026)

React icons are a popular choice for adding scalable vector icons to your web applications. They offer a wide range of icons from popular libraries and are easy to use. However, customizing these icons, particularly changing their fill color, can sometimes be confusing for beginners. In this tutorial, we will explore how to change the fill color of React icons, such as the AiFillHeart icon, and understand why certain methods do or do not work. By the end of this guide, you will have a clear understanding of how to style React icons effectively.

Key Takeaways

• Learn how to change the fill color of React icons using CSS and inline styles.
• Understand the difference between 'color' and 'fill' properties in SVGs.
• Discover common pitfalls and how to troubleshoot them.
• Gain knowledge of React icon libraries and their customization capabilities.

Prerequisites

• Basic understanding of React and JavaScript.
• Node.js and npm installed on your system.
• Familiarity with CSS and HTML.

Step 1: Set Up Your React Project

If you haven't already set up a React project, you can create one quickly using Create React App. Open your terminal and run the following commands:

npx create-react-app react-icons-tutorial
cd react-icons-tutorial
npm start

This will create a new React application and start the development server.

Step 2: Install React Icons Library

To use icons in your React application, you need to install the React Icons library. This library provides a collection of popular icons from libraries like Font Awesome, Ionicons, and more. Run the following command to install it:

npm install react-icons --save

Once installed, you can import and use the icons in your components.

Step 3: Import and Use an Icon

Let's use the AiFillHeart icon from Ant Design Icons as an example. Import the icon in your component file and render it:

import React from 'react';
import { AiFillHeart } from 'react-icons/ai';

function App() {
  return (
    
      React Icons Tutorial
      
    
  );
}

export default App;

Notice we set the initial color to 'grey'.

Step 4: Change the Icon's Fill Color

To change the fill color of the icon, you need to understand the difference between the CSS 'color' property and the 'fill' attribute in SVGs. The 'color' property typically affects the text color, while the 'fill' attribute is used for SVG elements. In the case of React icons, you can directly modify the 'color' property to change the fill color:

However, if this does not work, it might be due to specific styling in your CSS. Ensure there are no overriding CSS rules affecting the icon.

Step 5: Use CSS for More Control

If inline styles do not give you the desired effect, or you want more control, consider using CSS classes:

.icon-red {
  color: red;
}

Then apply this class to your icon:

Common Errors/Troubleshooting

Sometimes, changing the icon color might not work as expected due to various reasons. Here are some common issues and how to troubleshoot them:

• CSS Specificity: Ensure that no other CSS rules are overriding your styles. Use browser developer tools to inspect the element and check applied styles.
• SVG vs CSS: Remember, SVG elements might require 'fill' for color changes if they do not respond to 'color'.
• Library Version: Check if you are using the latest version of React Icons. Newer versions may have different default behaviors.

Frequently Asked Questions

Why isn't my icon color changing?

Ensure there are no overriding CSS styles affecting your icon. Use the browser's developer tools to inspect and debug.

Can I use CSS classes instead of inline styles?

Yes, using CSS classes can provide more control and maintainability over inline styles.

What if my icon requires 'fill' instead of 'color'?

Some SVG icons may require 'fill' for color changes. Check the icon's SVG properties if 'color' doesn't work.

Frequently Asked Questions

Why isn't my icon color changing?

Ensure there are no overriding CSS styles affecting your icon. Use the browser's developer tools to inspect and debug.

Can I use CSS classes instead of inline styles?

Yes, using CSS classes can provide more control and maintainability over inline styles.

What if my icon requires 'fill' instead of 'color'?

Some SVG icons may require 'fill' for color changes. Check the icon's SVG properties if 'color' doesn't work.