JSXGraph
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Colorful points
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<iframe 
    src="http://jsxgraph.org/share/iframe/colorful-points" 
    style="border: 1px solid black; overflow: hidden; width: 550px; aspect-ratio: 55 / 65;" 
    name="JSXGraph example: Colorful points" 
    allowfullscreen
></iframe>
This code has to 
<div id="board-0-wrapper" class="jxgbox-wrapper " style="width: 100%; ">
   <div id="board-0" class="jxgbox" style="aspect-ratio: 1 / 1; width: 100%;" data-ar="1 / 1"></div>
</div>

<script type = "text/javascript"> 
    /*
    This example is licensed under a 
    Creative Commons Attribution 4.0 International License.
    https://creativecommons.org/licenses/by/4.0/
    
    Please note you have to mention 
    The Center of Mobile Learning with Digital Technology
    in the credits.
    */
    
    const BOARDID = 'board-0';

    JXG.Options.point.zoom = true;
    
    const board = JXG.JSXGraph.initBoard(BOARDID, {
        boundingbox: [-0.1, 1.1, 1.1, -0.1]
    });
    var i, h, s, v;
    
    for (i = 0; i < 100; i++) {
        // Select random HSV color
        h = Math.random() * 360;
        s = Math.random();
        v = 1.0;
        board.create('point', [Math.random(), Math.random()], {
            withLabel: false,
            face: 'circle',
            size: Math.random() * 65,
            strokeColor: JXG.hsv2rgb(h, s, v),
            fillColor: JXG.hsv2rgb((h + 180) % 360, s, v),
            highlightFillColor: JXG.hsv2rgb(h, s, v),
            fillOpacity: 0.7,
            highlightFillOpacity: 0.4
        });
    }
 </script> 
/*
This example is licensed under a 
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/

Please note you have to mention 
The Center of Mobile Learning with Digital Technology
in the credits.
*/

const BOARDID = 'your_div_id'; // Insert your id here!

JXG.Options.point.zoom = true;

const board = JXG.JSXGraph.initBoard(BOARDID, {
    boundingbox: [-0.1, 1.1, 1.1, -0.1]
});
var i, h, s, v;

for (i = 0; i < 100; i++) {
    // Select random HSV color
    h = Math.random() * 360;
    s = Math.random();
    v = 1.0;
    board.create('point', [Math.random(), Math.random()], {
        withLabel: false,
        face: 'circle',
        size: Math.random() * 65,
        strokeColor: JXG.hsv2rgb(h, s, v),
        fillColor: JXG.hsv2rgb((h + 180) % 360, s, v),
        highlightFillColor: JXG.hsv2rgb(h, s, v),
        fillOpacity: 0.7,
        highlightFillOpacity: 0.4
    });
}
<jsxgraph width="100%" aspect-ratio="1 / 1" title="Colorful points" description="This construction was copied from JSXGraph examples database: BTW HERE SHOULD BE A GENERATED LINKuseGlobalJS="false">
   /*
   This example is licensed under a 
   Creative Commons Attribution 4.0 International License.
   https://creativecommons.org/licenses/by/4.0/
   
   Please note you have to mention 
   The Center of Mobile Learning with Digital Technology
   in the credits.
   */
   
   JXG.Options.point.zoom = true;
   
   const board = JXG.JSXGraph.initBoard(BOARDID, {
       boundingbox: [-0.1, 1.1, 1.1, -0.1]
   });
   var i, h, s, v;
   
   for (i = 0; i < 100; i++) {
       // Select random HSV color
       h = Math.random() * 360;
       s = Math.random();
       v = 1.0;
       board.create('point', [Math.random(), Math.random()], {
           withLabel: false,
           face: 'circle',
           size: Math.random() * 65,
           strokeColor: JXG.hsv2rgb(h, s, v),
           fillColor: JXG.hsv2rgb((h + 180) % 360, s, v),
           highlightFillColor: JXG.hsv2rgb(h, s, v),
           fillOpacity: 0.7,
           highlightFillOpacity: 0.4
       });
   }
</jsxgraph>

Colorful points

Point
Technical
This example uses the HSV color scheme to make the fill colors of the point visually pleasing.
// Define the id of your board in BOARDID

JXG.Options.point.zoom = true;

const board = JXG.JSXGraph.initBoard(BOARDID, {
    boundingbox: [-0.1, 1.1, 1.1, -0.1]
});
var i, h, s, v;

for (i = 0; i < 100; i++) {
    // Select random HSV color
    h = Math.random() * 360;
    s = Math.random();
    v = 1.0;
    board.create('point', [Math.random(), Math.random()], {
        withLabel: false,
        face: 'circle',
        size: Math.random() * 65,
        strokeColor: JXG.hsv2rgb(h, s, v),
        fillColor: JXG.hsv2rgb((h + 180) % 360, s, v),
        highlightFillColor: JXG.hsv2rgb(h, s, v),
        fillOpacity: 0.7,
        highlightFillOpacity: 0.4
    });
}

license

This example is licensed under a Creative Commons Attribution 4.0 International License.
Please note you have to mention The Center of Mobile Learning with Digital Technology in the credits.