index.html

<html>
    <head>
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Color Palette Generator</title>
        <style>
            text {font-weight: bold, padding 60px; text-align: center; }
            .box {width: 250px; height: 350px; display: inline-block; margin: 10px; }
            button { background-color: black; color:white; border-radius: 10px; margin-top: 10px; padding: 7px 15px; font-size: 34px; }
        </style>
    </head>
    <body>
        <h1>COLOR PALETTE GENERATOR</h1>
        <div id="palette">
            <div id="colorbox1" class="box"></div>
            <div id="colorbox2" class="box"></div>
            <div id="colorbox3" class="box"></div>
        </div>
        <button onclick="color()">Generate Colors</button>
        <script>
            function randomcolor() {
                return Math.floor(Math.random() * 360);
            }

            function shades(color1) {
                const color2 = (color1 + 120) % 360;
                const color3 = (color1 + 240) % 360;
                return [color1, color2, color3];
            }

            function color() {
                const color1 = randomcolor();
                const colors = shades(color1);
                colors.forEach((colorshade, index) => {
                    const colorBox = document.querySelector(`#colorbox${index + 1}`);
                    const color = `hsl(${colorshade}, 69%, 49%)`;
                    colorBox.style.backgroundColor = color;
                });
            }
        </script>
        <h2>(I was up all night making this)</h2>
    </body>
</html>