Learn How to Generate Random Colors with JavaScript Like an Expert

Generating random colors with JavaScript can be a bit intimidating, especially to new developers. in this post, I will walk you through how you can generate random colors with JavaScript.

create an index.html file

create an index.html file, and copy and paste the code snippet below into the index.html file.

  <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Generate random color</title>

    <style ="text/css">
        body {
            display: grid;
            place-items: center;
            height: 100vh;
        }
        #button {
            height: 50px;
            width: 100px;
        }
    </style>
</head>
<body>

    <button id=" button">Click me</button>

    <script>
        const button = document.getElementById("button");

        button.addEventListener("click", () => {
            const generateRandomColor = `#${Math.floor(Math.random() * 0xffffff).toString(16)}`;
            document.body.style = `background-color: ${generateRandomColor}`;
        })
    </script>
</body>
</html>

Code Explanation

the HTML code below will create a button element on the HTML document.

<button id="button">Click me</button>

I added a little styling to it to place the button element in the center of the HTML document

  body {
    display: grid;
    place-items: center;
    height: 100vh;
  }
   #button {
    height: 50px;
    width: 100px;
  }

Here is the JavaScript code that does the magic.
firstly, I search through the Dom tree to retrieve a button element with an id of "button", then I stored it in a variable called button.
then, I added an event listener to the button, and I listen to a click event.
then the code generates a random color each time the button is clicked.
then I assigned the color to the background.

  const button = document.getElementById("button");

        button.addEventListener("click", () => {
            const generateRandomColor = `#${Math.floor(Math.random() * 0xffffff).toString(16)}`;
            document.body.style = `background-color: ${generateRandomColor}`;
        })

https://codepen.io/codeauthor1/pen/VwEVxQQ

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Codeauthor

Codeauthor

Learn How to Generate Random Colors with JavaScript Like an Expert

Generate random colors with JavaScript

Code Explanation