How to Make a Color Picker in JavaScript

In this step-by-step guide, we’ll walk you through the process of creating a color picker using JavaScript. Color pickers are a valuable component in modern web development, allowing users to easily choose their favorite colors. By following our detailed instructions and exploring the code examples provided, you will be able to implement a fully functional and interactive color picker in your web applications. Let’s start this exciting journey!


How to Make a Color Picker in JavaScript:

Step 1: Setting Up the HTML Structure

To begin, we’ll create the basic HTML structure for our color picker. We’ll use an input element of type “color”, which provides a built-in color picker interface. The ID “colorInput” will allow us to reference this input element in our JavaScript code. Additionally, we’ll add a <div> element with the class “color-preview” and the ID “colorPreview”. This <div> will visually represent the selected color to the users.

How to Make a Color Picker in JavaScript (HTML Preview)


HTML File (index.html):

<!DOCTYPE html>
<html lang="en">
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Color Picker</title>
  <link rel="stylesheet" href="style.css">
  <div class="color-picker">
    <input type="color" id="colorInput">
    <div class="color-preview" id="colorPreview"></div>
  <script src="main.js"></script>

Step 2: Applying CSS Styling

Next, let’s style the color picker to make it visually appealing. In our CSS code, we’ll center the entire content on the web page using flexbox and set a neutral background color. We’ll also define styles for the “color-picker” class, which will be applied to the container, and the “color-preview” class, which will be applied to the color preview <div>.

How to Make a Color Picker in JavaScript (CSS Preview)


CSS File (style.css):

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f1f1f1;

.color-picker {
    display: flex;
    flex-direction: column;
    align-items: center;

.color-preview {
    width: 100px;
    height: 100px;
    margin-top: 20px;
    border: 2px solid #333;
    border-radius: 50%;

Step 3: Implementing JavaScript Functionality

Now, let’s add the JavaScript functionality to our color picker. We’ll start by selecting the color input and color preview elements using their respective IDs (“colorInput” and “colorPreview”).

Next, we’ll use the addEventListener method to attach an “input” event listener to the color input. This event will be triggered whenever the user interacts with the color picker.

Inside the event listener, we’ll access the value of the color input using colorInput.value, which will give us the hexadecimal representation of the selected color.

Finally, we’ll update the backgroundColor of the color preview to the selected color, effectively changing its appearance to match the user’s selection.

How to Make a Color Picker in JavaScript (JS Preview)


JavaScript File (main.js):

// Get the color input and preview elements
const colorInput = document.getElementById('colorInput');
const colorPreview = document.getElementById('colorPreview');

// Update the color preview on input change
colorInput.addEventListener('input', () => {
  const selectedColor = colorInput.value; = selectedColor;


Congratulations! You have successfully created a color picker in JavaScript by following our step-by-step guide. By setting up the HTML structure, applying CSS styling, and implementing JavaScript functionality, you now have a fully functional and interactive color picker for your web applications. Feel free to explore further customization options, add additional features, or integrate the color picker with other elements to suit your specific project requirements. Happy coding!


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