RGBA Color Generator using JavaScript – Coding Torque

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Hello Guys! In this blog, I’m going to explain to you how to create RGBA Color Generator using JavaScript. This will be a step-by-step guide including HTML and CSS. Let’s get started 🚀.

Before we start, here are some more JavaScript Games you might like to create:

1. Snake Game using JavaScript

2. 2D Bouncing Ball Game using JavaScript

3. Rock Paper Scissor Game using JavaScript

4. Tic Tac Toe Game using JavaScript

5. Whack a Mole Game using JavaScript


I would recommend you don’t just copy and paste the code, just look at the code and type by understanding it.


HTML Code 

<!doctype html>
<html lang="en">

    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- Font Awesome Icons  -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css"
        crossorigin="anonymous" />

    <!-- Google Fonts  -->
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Poppins&display=swap" rel="stylesheet">

    <title>RGBA Color Generator - @code.scientist x @codingtorque</title>

    <div class="card">
        <div class="sliders">
            <label for="red">Red</label>
            <input type="range" min="0" max="255" value="0" oninput="generateRGBA()" id="red">
            <label for="green">Green</label>
            <input type="range" min="0" max="255" value="0" oninput="generateRGBA()" id="green">
            <label for="blue">Blue</label>
            <input type="range" min="0" max="255" value="0" oninput="generateRGBA()" id="blue">
            <label for="alpha">Aplha</label>
            <input type="range" min="0.1" max="1.0" step="0.1" value="1" oninput="generateRGBA()" id="alpha">
        <div class="output-box">
            <div class="output" id="output">rgba(0,0,0,1)</div>
            <div class="copy-btn" onclick="copy()"><i class="fas fa-copy"></i></div>




Output Till Now

CSS Code 

Create a file style.css and paste the code below.

* {
        font-family: 'Poppins', sans-serif;
    body {
        background-color: #111827;
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
    .card {
        width: 15rem;
        border-radius: 10px;
        overflow: hidden;
        background: #1f2937;
        padding: 30px 20px;
    .sliders {
        display: flex;
        flex-direction: column;
    .output-box {
        display: flex;
        align-items: center;
        width: fit-content;
        margin-top: 1rem;
    .output {
        border: 2px solid;
        padding: 6px 20px;
    .copy-btn {
        cursor: pointer;
        padding: 12px;
        background: #111827;


Output Till Now

rgba color generator using javascript

JavaScript Code 

Create a file script.js and paste the code below.
const generateRGBA = () => {
       let red = document.getElementById("red").value;
       let green = document.getElementById("green").value;
       let blue = document.getElementById("blue").value;
       let alpha = document.getElementById("alpha").value;
       let output = document.getElementById("output");
       output.innerText = `rgba(${red}, ${green}, ${blue}, ${alpha})`
       output.style.background = `rgba(${red}, ${green}, ${blue}, ${alpha})`
   const copy = () => {
       let output = document.getElementById("output");
Written by: Piyush Patil
If you have any doubts or any project ideas feel free to Contact Us
Hope you find this post helpful💖
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