In this tutorial, we will learn JQuery UI Slider Colorpicker Example


Example

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>jQuery UI Slider Colorpicker Example</title>
    <link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
    <link href="https://fonts.googleapis.com/css2?family=K2D:wght@200&family=Pathway+Gothic+One&display=swap" rel="stylesheet">
    <style>
        body{
            background-color: #000 !important;
            font-family: 'K2D', sans-serif;
        }
        .content{
            height:200px;
            padding:45px 40px;
            margin:150px auto;
            width:35%;
            background:#fff;
        }
        #red, #green, #blue {
            float: left;
            clear: left;
            width: 300px;
            margin: 15px;
        }
        #swatch {
            width: 120px;
            height: 100px;
            margin-top: 18px;
            margin-left: 350px;
            background-image: none;
        }
        #red .ui-slider-range { background: #ef2929; }
        #red .ui-slider-handle { border-color: #ef2929; }
        #green .ui-slider-range { background: #8ae234; }
        #green .ui-slider-handle { border-color: #8ae234; }
        #blue .ui-slider-range { background: #729fcf; }
        #blue .ui-slider-handle { border-color: #729fcf; }
    </style>
</head>
<body class="ui-widget-content" style="border:0;">
    <div class="content">
        <p class="ui-state-default ui-corner-all ui-helper-clearfix" style="padding:4px;">
            <span class="ui-icon ui-icon-pencil" style="float:left; margin:-2px 5px 0 0;"></span>Simple Colorpicker
        </p>
        <div id="red"></div>
        <div id="green"></div>
        <div id="blue"></div>
        <div id="swatch" class="ui-widget-content ui-corner-all"></div>
    </div>
</body>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
    $(function(){
        function hexFromRGB(r, g, b) {
            var hex = [
                r.toString( 16 ),
                g.toString( 16 ),
                b.toString( 16 )
            ];
            $.each( hex, function( nr, val ) {
                if ( val.length === 1 ) {
                    hex[ nr ] = "0" + val;
                }
            });
            return hex.join( "" ).toUpperCase();
        }
        function refreshSwatch(){
            var red = $( "#red" ).slider( "value" ),
            green = $( "#green" ).slider( "value" ),
            blue = $( "#blue" ).slider( "value" ),
            hex = hexFromRGB( red, green, blue );
            $( "#swatch" ).css( "background-color", "#" + hex );
        }
        $("#red, #green, #blue").slider({
            orientation: "horizontal",
            range: "min",
            max: 255,
            value: 127,
            slide: refreshSwatch,
            change: refreshSwatch
        });
        $("#red").slider("value", 255);
        $("#green").slider("value", 140);
        $("#blue").slider("value", 60);
    });
</script>
</html>


May this example help you.