change background color using javascript - Brave Search

How do I change the background color with JavaScript?

stackoverflow.com › questions › 197748 › how-do-i-change-the-background-color-with-javascript

Modify the JavaScript property document.body.style.background.

For example:

function changeBackground(color) {
   document.body.style.background = color;
}

window.addEventListener("load",function() { changeBackground('red') });

Note: this does depend a bit on how your page is put together, for example if you're using a DIV container with a different background colour you will need to modify the background colour of that instead of the document body.

Answer from user7094 on Stack Overflow

stackoverflow.com › questions › 197748 › how-do-i-change-the-background-color-with-javascript

css - How do I change the background color with JavaScript? - Stack Overflow

Modify the JavaScript property document.body.style.background.

For example:

function changeBackground(color) {
   document.body.style.background = color;
}

window.addEventListener("load",function() { changeBackground('red') });

Note: this does depend a bit on how your page is put together, for example if you're using a DIV container with a different background colour you will need to modify the background colour of that instead of the document body.

You don't need AJAX for this, just some plain JavaScript setting the background-color property of the body element, like this:

document.body.style.backgroundColor = "#AA0000";

If you want to do it as if it was initiated by the server, you would have to poll the server and then change the color accordingly.

w3schools.com › jsref › prop_style_backgroundcolor.asp

HTML DOM Style backgroundColor Property

The backgroundColor property sets or returns the background color of an element. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com · If you want to report an error, or if you want to make a suggestion, send us an e-mail: help@w3schools.com · HTML Tutorial CSS Tutorial JavaScript Tutorial How To Tutorial SQL Tutorial Python Tutorial W3.CSS Tutorial Bootstrap Tutorial PHP Tutorial Java Tutorial C++ Tutorial jQuery Tutorial

Discussions

Using JavaScript to change an element's background color via CSS

Hey everyone! I’m trying to figure out how to change the background color of an HTML element using JavaScript. I know we can do this with CSS, but I need to make it happen dynamically with JS. Does anyone know the best way to go about this? Here’s what I’ve tried so far: function ... More on community.latenode.com

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May 5, 2025

How to change background color using JavaScript

Piotr Manczak is having issues with: It doesn't work. It doesn't say why. Any ideas what I'm doing wrong? More on teamtreehouse.com

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February 1, 2019

Need help with changing the background color using javascript

change your href to src in script tag. also, in javascript. it should be changeColor.style.backgroundColor = 'green'; More on reddit.com

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February 1, 2020

Change background color by DOM manipulation

Trying to change the background color of the paragraph element when someone enters a color into the textbox and hits “change color” button. .On page load, a random number of elements will be generated. Random numbers are 1-5 elements. Any advice on how to get this going? More on forum.freecodecamp.org

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September 3, 2021

Videos

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How to Change Div Background Color Dynamically using Javascript ...

November 30, 2024

freecodecamp.org › news › how-to-change-background-color-with-javascript

How to Change Background Color with JavaScript – BG Color in JS and HTML

June 28, 2024 - Each function has one thing in common: they all target the body. Through the body element (which represents the webpage), we accessed the style.backgroundColor property. The property returns or sets the background color of an element.

geeksforgeeks.org › javascript › how-to-change-the-background-color-after-clicking-the-button-in-javascript

How to change the Background Color after Clicking the Button in JavaScript? - GeeksforGeeks

Using JavaScript to change the background color involves adding an event listener to a button, which triggers a function to set the background color property of an element, dynamically altering the background when the button is clicked.

Published August 5, 2025

tabnine.com › home › how to change the background color with javascript

How to Change the Background Color with JavaScript - Tabnine

July 25, 2024 - The code uses this property to assign the value “yellow” to the element, changing its background color to yellow. Note: Using the style property will add inline styling to the element. Inline CSS is the most specific level of CSS that can be applied to an object, applying to an individual element itself. It thus overrides most other CSS declarations for an element. This approach centers on using element properties in JavaScript ...

community.latenode.com › other questions › javascript

Using JavaScript to change an element's background color via CSS - JavaScript - Latenode Official Community

May 5, 2025 - Here’s what I’ve tried so far: function changeColor(elementId, newColor) { let targetElement = document.getElementById(elementId); targetElement.style.backgroundColor = newColor; } // Usage changeColor('myDiv', 'blue'); This kind of works, ...

educative.io › answers › how-to-change-background-color-in-javascript

How to change background color in JavaScript

There are two simple ways to change the background color of a web page using JavaScript:

Find elsewhere

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sololearn.com › en › Discuss › 2442349 › solvedhow-can-i-change-background-color-of-a-div-element-using-javascript

[Solved]How can I change background color of a div element using javascript? | Sololearn: Learn to code for FREE!

I tested and got similar code to ... Playground: JS: document.addEventListener('DOMContentLoaded', function() { var div1=document.getElementById("div1"); div1.style.backgroundColor="#ffff00"; // yellow }); HTML: <!DOCTYPE html> ...

teamtreehouse.com › community › how-to-change-background-color-using-javascript

How to change background color using JavaScript (Example) | Treehouse Community

I believe background-color is what you'd use in CSS. In JavaScript it's backgroundColor.

Yes, you're right. It worked pretty well. I completed this challenge. Thank you.

reddit.com › r/learnprogramming › need help with changing the background color using javascript

r/learnprogramming on Reddit: Need help with changing the background color using javascript

February 1, 2020 -

I keep getting an error telling me that newColor is undefined, which I thought thats what I did in the Javascript. I'm just lost. Any help would be appreciated.

HTML

<!DOCTYPE html>

<html> <head> <title>Background Color Change</title> <link rel="stylesheet" href="backgroundColor.css"> </head> <body id="body"> <button type="button" onclick="newColor()" id="colorChange"><b>Click Me</b></button> <script type="text/javascript" href="backgroundColor.js"></script> </body> </html>

Javascript

function newColor(){
var changeColor= document.getElementById("body");
changeColor.style.backgroundColor('green');
}

CSS

#colorChange:hover{
background-color: red;
}
#colorChange{
background-color: green;
}
#body{
background-color:blue;
text-align:center;
}

change your href to src in script tag. also, in javascript. it should be changeColor.style.backgroundColor = 'green';

Thats it! Thanks

forum.freecodecamp.org › javascript

Change background color by DOM manipulation - JavaScript - The freeCodeCamp Forum

September 3, 2021 - Trying to change the background color of the paragraph element when someone enters a color into the textbox and hits “change color” button. .On page load, a random number of elements will be generated. Random numbers a…

kumuthudulnath.medium.com › lets-learn-javascript-by-making-a-simple-application-c7fcce6f9f30

How to make a Background Color changing Application Using JavaScript and HTML | by Kumuthu_Dulnath | Medium

February 17, 2021 - What happens here is every time we click the button the value of i gets incremented by 1. But hold on! Why not just use a loop inside the “changeBackground” function instead? Why do we need to use 2 functions? Well, here’s the thing. We need the background color to change each time we press the button.

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Change background-color with JavaScript

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Tutorial Republic

tutorialrepublic.com › faq › how-to-change-the-background-color-of-a-web-page-using-javascript.php

How to Change the Background Color of a Web Page Using JavaScript

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Change the Background Color with JavaScript</title> <script> // Function to change webpage background color function changeBodyBg(color){ document.body.style.background = color; } ...

teamtreehouse.com › community › how-to-change-background-color-with-js

How to change background color with JS (Example) | Treehouse Community

July 10, 2017 - <body> <div> <input type='submit' id='red' class='buttons' value='Red'> <input type='submit' id='blue' class='buttons' value='Blue'> <input type='submit' id='green' class='buttons' value='Green'> <input type='submit' id='purple' class='buttons' value='Purple'> </div> <script> var blue = document.querySelector('#blue'); var red = document.querySelector('#red'); var green = document.querySelector('#green'); var purple = document.querySelector('#purple'); blue.addEventListener('click', () => { document.body.style.backgroundColor = 'blue'; }); red.addEventListener('click', () => { document.body.st

levelup.gitconnected.com › change-background-color-using-javascript-e60d172e9124

Change Background Color Using JavaScript | by Raja Tamil | Level Up Coding

January 16, 2023 - Change Background Color Using JavaScript There are a few ways you can change the background color of an HTML Element dynamically in JavaScript. Using style.backgroundColor property Using …

softauthor.com › home › javascript › change background color using javascript

Change Background Color Using JavaScript

December 29, 2025 - There are a few ways you can change the background color of an HTML Element dynamically in JavaScript. ... You can use the style.backgroundColor property directly in JavaScript to change a background colour of an HTML element.

delftstack.com › home › howto › javascript › javascript change background color

How to Change the Background Color in JavaScript | Delft Stack

March 11, 2025 - In this code, we define a function getRandomColor() that generates a random HEX color code. When the button with the ID randomColorButton is clicked, the onclick event calls this function, and the background color is updated accordingly.

geeksforgeeks.org › javascript › design-background-color-changer-using-html-css-and-javascript

Design Background color changer using HTML CSS and JavaScript - GeeksforGeeks

Background color changer is a project which enables to change the background color of web pages with ease. There are color boxes on a web page when the user clicks on any one of them, then the resultant color will appear in the background of ...

Published August 5, 2025

quora.com › How-do-you-change-the-background-color-of-an-HTML-page-in-JavaScript

How to change the background color of an HTML page in JavaScript - Quora

Answer (1 of 2): You can change the background color by targeting that element as:- Hello