JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://moargh.de/daten/color-thief-master/js/color-thief.js"></script>
<div id="mydiv"></div>

CSS

#mydiv {
    width: 100px;
    height: 100px;
    border: 1px solid #000;
}

JavaScript

var sourceImage = 'https://www.google.de/intl/de_ALL/images/logos/images_logo_lg.gif';

var colorThief = new ColorThief();
colorThief.getColor(sourceImage);