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HTML

              
                
<div id="colorContainer">
<h1>HSLA Dials</h1>
<svg xmlns="http://www.w3.org/2000/svg" width="1300" height="300" viewBox="0 0 650 150">
   <circle class="base" r="75" cx="70" cy="80" />
  <circle class="base" r="75" cx="240" cy="80" />
  <circle class="base" r="75" cx="410" cy="80" />
  <circle class="base" r="75" cx="580" cy="80" />
  <g id="HueDial">
    <path d="M70.83,10V17H69.17V10h1.66Zm34.89,9.84-3.52,6.12-1.43-.83L104.28,19l1.44.83ZM131,45.85,125,49.38l-.83-1.44,6.09-3.53.83,1.44Zm9,35.29h-7V79.47h7v1.67Zm-9.79,35.07-6.09-3.53.83-1.45,6.08,3.53-.82,1.45ZM9,114.76l6.09-3.53.83,1.45-6.09,3.53L9,114.76ZM0,79.47H7v1.67H0V79.47ZM9.79,44.41l6.09,3.53-.83,1.44L9,45.85l.83-1.44ZM35.72,19l3.51,6.11-1.43.84-3.52-6.12.29-.17h0l.35-.2.8-.46ZM139.31,90l-3.48-.46.13-1,3.48.46-.13,1ZM.56,89,4,88.5l.13,1L.69,90,.56,89ZM2.27,98l3.39-.91.26,1L2.53,99l-.26-1ZM14.78,37.07l2.79,2.15L17,40l-2.79-2.15.61-.8Zm119.67,70.59-3.24-1.35.38-.93,3.25,1.35-.39.93ZM52.37,12.22l.9,3.41-1,.26-.91-3.41,1-.26ZM97.24,15.5l-1.35,3.26L95,18.37l1.35-3.26.92.39Zm-35.88-5,.46,3.5-1,.13-.46-3.5,1-.13Zm27.23,2-.91,3.41-1-.26.91-3.41,1,.26ZM2.53,61.6l3.39.92-.26,1-3.39-.92.26-1Zm11.65,61.1L17,120.55l.61.8-2.79,2.15-.61-.8ZM113,24.79l-2.14,2.8-.79-.61,2.14-2.8.79.61ZM5.53,52.91l3.25,1.35-.39.93L5.15,53.84l.38-.93Zm74.1-42.29-.46,3.5-1-.13.46-3.5,1,.13Zm58.09,51.94-3.4.92-.25-1,3.39-.92.26,1ZM137.46,99l-3.39-.92.25-1,3.4.91-.26,1Zm-18.33,31.42-2.48-2.5.71-.71,2.48,2.5-.71.71ZM139.44,71.6l-3.48.46-.13-1,3.48-.46.13,1ZM.69,70.6l3.48.47-.13,1L.56,71.6l.13-1Zm124.53,52.92-2.79-2.15.61-.8,2.79,2.15-.61.8ZM27.78,24.18,29.92,27l-.79.6L27,24.79l.79-.61Zm15.89-9.07L45,18.38l-.92.38L42.75,15.5l.92-.39ZM5.15,106.75,8.4,105.4l.38.93-3.25,1.35-.38-.93ZM125.82,37.87,123,40l-.61-.79,2.79-2.15.61.8Zm9,16-3.25,1.35-.38-.92,3.25-1.36.38.93ZM20.86,30.2l2.48,2.5-.71.71-2.48-2.5.71-.71Zm99,.71-2.48,2.49-.71-.71,2.48-2.49.71.71ZM20.17,129.66l2.48-2.5.71.71-2.49,2.5Z" fill="#999"/>
    <g class="dial">
      <path d="M70,140.05A60.49,60.49,0,1,0,9.52,79.57,60.6,60.6,0,0,0,70,140.05Z" fill="#4d4d4d" fill-rule="evenodd"/>
      <path d="M70,24.07a55.42,55.42,0,0,1,46.08,24.57H23.91A55.45,55.45,0,0,1,70,24.07Z" fill="#ccc" fill-rule="evenodd"/>
      <path d="M115.48,47.76c.2.29.41.58.6.88H23.91c.2-.3.41-.59.61-.88Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <path d="M70,24.07a55.5,55.5,0,1,1-55.5,55.5A55.5,55.5,0,0,1,70,24.07Zm0,.73a54.77,54.77,0,1,0,54.77,54.77A54.77,54.77,0,0,0,70,24.8Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <circle cx="70" cy="29.49" r="2.15" fill="#333"/>
      <text transform="translate(70 86)">HUE</text>
    </g>
  </g>
  <g id="SaturationDial">
    <path d="M240.83,10V17h-1.66V10h1.66Zm34.89,9.84-3.52,6.12-1.43-.83L274.28,19l1.44.83ZM301,45.85,295,49.38l-.83-1.44,6.09-3.53.83,1.44Zm9,35.29h-7V79.47h7v1.67Zm-9.79,35.07-6.09-3.53.83-1.45,6.08,3.53-.82,1.45ZM179,114.76l6.09-3.53.83,1.45-6.09,3.53-.83-1.45Zm-9-35.29h7v1.67h-7V79.47Zm9.79-35.06,6.09,3.53-.83,1.44L179,45.85l.83-1.44ZM205.72,19l3.51,6.11-1.43.84-3.52-6.12.29-.17h0l.35-.2.8-.46ZM309.31,90l-3.48-.46.13-1,3.48.46-.13,1ZM170.56,89,174,88.5l.13,1-3.48.46-.13-1ZM172.27,98l3.39-.91.26,1-3.39.92-.26-1Zm12.51-60.94,2.79,2.15L187,40l-2.79-2.15.61-.8Zm119.67,70.59-3.24-1.35.38-.93,3.25,1.35-.39.93ZM222.37,12.22l.9,3.41-1,.26-.91-3.41,1-.26Zm44.87,3.28-1.35,3.26-.92-.39,1.35-3.26.92.39Zm-35.88-5,.46,3.5-1,.13-.46-3.5,1-.13Zm27.23,2-.91,3.41-1-.26.91-3.41,1,.26ZM172.53,61.6l3.39.92-.26,1-3.39-.92.26-1Zm11.65,61.1,2.79-2.15.61.8-2.79,2.15-.61-.8ZM283,24.79l-2.14,2.8-.79-.61,2.14-2.8.79.61ZM175.53,52.91l3.25,1.35-.39.93-3.24-1.35.38-.93Zm74.1-42.29-.46,3.5-1-.13.46-3.5,1,.13Zm58.09,51.94-3.4.92-.25-1,3.39-.92.26,1ZM307.46,99l-3.39-.92.25-1,3.4.91-.26,1Zm-18.33,31.42-2.48-2.5.71-.71,2.48,2.5-.71.71ZM309.44,71.6l-3.48.46-.13-1,3.48-.46.13,1Zm-138.75-1,3.48.47-.13,1-3.48-.46.13-1Zm124.53,52.92-2.79-2.15.61-.8,2.79,2.15-.61.8ZM197.78,24.18,199.92,27l-.79.6L197,24.79l.79-.61Zm15.89-9.07L215,18.38l-.92.38-1.35-3.26.92-.39Zm-38.52,91.64,3.25-1.35.38.93-3.25,1.35-.38-.93ZM295.82,37.87,293,40l-.61-.79,2.79-2.15.61.8Zm9,16-3.25,1.35-.38-.92,3.25-1.36.38.93Zm-114-23.63,2.48,2.5-.71.71-2.48-2.5.71-.71Zm99,.71-2.48,2.49-.71-.71,2.48-2.49.71.71Zm-99.67,98.75,2.48-2.5.71.71-2.49,2.5Z" fill="#999"/>
    <g class="dial" >
      <path d="M240,140.05a60.49,60.49,0,1,0-60.48-60.48A60.6,60.6,0,0,0,240,140.05Z" fill="#4d4d4d" fill-rule="evenodd"/>
      <path d="M240,24.07a55.42,55.42,0,0,1,46.08,24.57H193.91A55.45,55.45,0,0,1,240,24.07Z" fill="#ccc" fill-rule="evenodd"/>
      <path d="M285.48,47.76c.2.29.41.58.6.88H193.91c.2-.3.41-.59.61-.88Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <path d="M240,24.07a55.5,55.5,0,1,1-55.5,55.5A55.5,55.5,0,0,1,240,24.07Zm0,.73a54.77,54.77,0,1,0,54.77,54.77A54.77,54.77,0,0,0,240,24.8Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <circle cx="240" cy="29.49" r="2.15" fill="#333"/>
<text transform="translate(240 86)">SATURATION</text>
    </g>
  </g>
  <g id="LightnessDial">
    <path data-name="notches" d="M410.83,10V17h-1.66V10h1.66Zm34.89,9.84-3.52,6.12-1.43-.83L444.28,19l1.44.83ZM471,45.85,465,49.38l-.83-1.44,6.09-3.53.83,1.44Zm9,35.29h-7V79.47h7v1.67Zm-9.79,35.07-6.09-3.53.83-1.45,6.08,3.53-.82,1.45ZM349,114.76l6.09-3.53.83,1.45-6.09,3.53-.83-1.45Zm-9-35.29h7v1.67h-7V79.47Zm9.79-35.06,6.09,3.53-.83,1.44L349,45.85l.83-1.44ZM375.72,19l3.51,6.11-1.43.84-3.52-6.12.29-.17h0l.35-.2.8-.46ZM479.31,90l-3.48-.46.13-1,3.48.46-.13,1ZM340.56,89,344,88.5l.13,1-3.48.46-.13-1ZM342.27,98l3.39-.91.26,1-3.39.92-.26-1Zm12.51-60.94,2.79,2.15L357,40l-2.79-2.15.61-.8Zm119.67,70.59-3.24-1.35.38-.93,3.25,1.35-.39.93ZM392.37,12.22l.9,3.41-1,.26-.91-3.41,1-.26Zm44.87,3.28-1.35,3.26-.92-.39,1.35-3.26.92.39Zm-35.88-5,.46,3.5-1,.13-.46-3.5,1-.13Zm27.23,2-.91,3.41-1-.26.91-3.41,1,.26ZM342.53,61.6l3.39.92-.26,1-3.39-.92.26-1Zm11.65,61.1,2.79-2.15.61.8-2.79,2.15-.61-.8ZM453,24.79l-2.14,2.8-.79-.61,2.14-2.8.79.61ZM345.53,52.91l3.25,1.35-.39.93-3.24-1.35.38-.93Zm74.1-42.29-.46,3.5-1-.13.46-3.5,1,.13Zm58.09,51.94-3.4.92-.25-1,3.39-.92.26,1ZM477.46,99l-3.39-.92.25-1,3.4.91-.26,1Zm-18.33,31.42-2.48-2.5.71-.71,2.48,2.5-.71.71ZM479.44,71.6l-3.48.46-.13-1,3.48-.46.13,1Zm-138.75-1,3.48.47-.13,1-3.48-.46.13-1Zm124.53,52.92-2.79-2.15.61-.8,2.79,2.15-.61.8ZM367.78,24.18,369.92,27l-.79.6L367,24.79l.79-.61Zm15.89-9.07L385,18.38l-.92.38-1.35-3.26.92-.39Zm-38.52,91.64,3.25-1.35.38.93-3.25,1.35-.38-.93ZM465.82,37.87,463,40l-.61-.79,2.79-2.15.61.8Zm9,16-3.25,1.35-.38-.92,3.25-1.36.38.93Zm-114-23.63,2.48,2.5-.71.71-2.48-2.5.71-.71Zm99,.71-2.48,2.49-.71-.71,2.48-2.49.71.71Zm-99.67,98.75,2.48-2.5.71.71-2.49,2.5Z" fill="#999"/>
    <g class="dial">
      <path d="M410,140.05a60.49,60.49,0,1,0-60.48-60.48A60.6,60.6,0,0,0,410,140.05Z" fill="#4d4d4d" fill-rule="evenodd"/>
      <path d="M410,24.07a55.42,55.42,0,0,1,46.08,24.57H363.91A55.45,55.45,0,0,1,410,24.07Z" fill="#ccc" fill-rule="evenodd"/>
      <path d="M455.48,47.76c.2.29.41.58.6.88H363.91c.2-.3.41-.59.61-.88Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <path d="M410,24.07a55.5,55.5,0,1,1-55.5,55.5A55.5,55.5,0,0,1,410,24.07Zm0,.73a54.77,54.77,0,1,0,54.77,54.77A54.77,54.77,0,0,0,410,24.8Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <circle cx="410" cy="29.49" r="2.15" fill="#333"/>
<text transform="translate(410 86)">LIGHTNESS</text>
    </g>
  </g>
  <g id="AlphaDial">
    <path d="M580.83,10V17h-1.66V10h1.66Zm34.89,9.84-3.52,6.12-1.43-.83L614.28,19l1.44.83ZM641,45.85,635,49.38l-.83-1.44,6.09-3.53.83,1.44Zm9,35.29h-7V79.47h7v1.67Zm-9.79,35.07-6.09-3.53.83-1.45,6.08,3.53-.82,1.45ZM519,114.76l6.09-3.53.83,1.45-6.09,3.53-.83-1.45Zm-9-35.29h7v1.67h-7V79.47Zm9.79-35.06,6.09,3.53-.83,1.44L519,45.85l.83-1.44ZM545.72,19l3.51,6.11-1.43.84-3.52-6.12.29-.17h0l.35-.2.8-.46ZM649.31,90l-3.48-.46.13-1,3.48.46-.13,1ZM510.56,89,514,88.5l.13,1-3.48.46-.13-1ZM512.27,98l3.39-.91.26,1-3.39.92-.26-1Zm12.51-60.94,2.79,2.15L527,40l-2.79-2.15.61-.8Zm119.67,70.59-3.24-1.35.38-.93,3.25,1.35-.39.93ZM562.37,12.22l.9,3.41-1,.26-.91-3.41,1-.26Zm44.87,3.28-1.35,3.26-.92-.39,1.35-3.26.92.39Zm-35.88-5,.46,3.5-1,.13-.46-3.5,1-.13Zm27.23,2-.91,3.41-1-.26.91-3.41,1,.26ZM512.53,61.6l3.39.92-.26,1-3.39-.92.26-1Zm11.65,61.1,2.79-2.15.61.8-2.79,2.15-.61-.8ZM623,24.79l-2.14,2.8-.79-.61,2.14-2.8.79.61ZM515.53,52.91l3.25,1.35-.39.93-3.24-1.35.38-.93Zm74.1-42.29-.46,3.5-1-.13.46-3.5,1,.13Zm58.09,51.94-3.4.92-.25-1,3.39-.92.26,1ZM647.46,99l-3.39-.92.25-1,3.4.91-.26,1Zm-18.33,31.42-2.48-2.5.71-.71,2.48,2.5-.71.71ZM649.44,71.6l-3.48.46-.13-1,3.48-.46.13,1Zm-138.75-1,3.48.47-.13,1-3.48-.46.13-1Zm124.53,52.92-2.79-2.15.61-.8,2.79,2.15-.61.8ZM537.78,24.18,539.92,27l-.79.6L537,24.79l.79-.61Zm15.89-9.07L555,18.38l-.92.38-1.35-3.26.92-.39Zm-38.52,91.64,3.25-1.35.38.93-3.25,1.35-.38-.93ZM635.82,37.87,633,40l-.61-.79,2.79-2.15.61.8Zm9,16-3.25,1.35-.38-.92,3.25-1.36.38.93Zm-114-23.63,2.48,2.5-.71.71-2.48-2.5.71-.71Zm99,.71-2.48,2.49-.71-.71,2.48-2.49.71.71Zm-99.67,98.75,2.48-2.5.71.71-2.49,2.5Z" fill="#999"/>
    <g class="dial">
      <path d="M580,140.05a60.49,60.49,0,1,0-60.48-60.48A60.6,60.6,0,0,0,580,140.05Z" fill="#4d4d4d" fill-rule="evenodd"/>
      <path d="M580,24.07a55.42,55.42,0,0,1,46.08,24.57H533.91A55.45,55.45,0,0,1,580,24.07Z" fill="#ccc" fill-rule="evenodd"/>
      <path d="M625.48,47.76c.2.29.41.58.6.88H533.91c.2-.3.41-.59.61-.88Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <path d="M580,24.07a55.5,55.5,0,1,1-55.5,55.5A55.5,55.5,0,0,1,580,24.07Zm0,.73a54.77,54.77,0,1,0,54.77,54.77A54.77,54.77,0,0,0,580,24.8Z" fill="#e6e6e6" fill-rule="evenodd"/>
      <circle cx="580" cy="29.49" r="2.15" fill="#333"/>
<text transform="translate(580 86)">ALPHA</text>
    </g>
  </g>
</svg>
    <div id="colorData">
    <p id="hslaData">hsla(180, 50%, 50%, 1)</p>
  </div>
  </div>


              
            
!

CSS

              
                html {
  font-size: 20px;
}
body {
  font-family: "proxima-nova", sans-serif;
  overflow: hidden;
  background-image: linear-gradient(45deg, #808080 25%, transparent 25%),
    linear-gradient(-45deg, #808080 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #808080 75%),
    linear-gradient(-45deg, transparent 75%, #808080 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

#colorContainer {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: hsla(180, 50%, 50%, 1);
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
}

svg {
  width: 90vw;
  max-width: 960px;
  height: auto;
  overflow: visible;
}

text {
  font-size: 14px;
  text-anchor: middle;
  fill: #f2f2f2;
  font-weight: 700;
}

.base {
  fill: rgb(20, 20, 30);
}

p {
  font-size: 1rem;
  font-weight: 600;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: white;
}

h1 {
  color: white;
  text-shadow: rgba(0, 0, 0, 0.4) 3px 3px 3px;
  font-size: 2.6rem;
}

#colorData {
  margin-top: 2rem;
  background: rgb(20, 20, 40);
  width: 280px;
  text-align: center;
  padding: 1rem;
  border-radius: 400px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.45);
  border: solid 2px white;
}

a {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgb(20, 20, 40);
  color: white;
  font-weight: 500;
  padding: 10px 1rem;
  z-index: 5;
  border-radius: 100px;
  font-size: 0.75rem;
}


              
            
!

JS

              
                gsap.registerPlugin(Draggable);
console.clear();
const rotMin = -135;
const rotMax = 135;
const color = [180, 50, 50, 1]; // initial HSLA color
const upperRange = [360, 100, 100, 1]; //upper map range for each dial
const colorContainer = document.querySelector("#colorContainer");
const hslaData = document.querySelector("#hslaData");
const dials = gsap.utils.toArray(".dial");

gsap.set(dials, { transformOrigin: "center center" });

dials.forEach((obj, i) => {
  let dial = new Draggable(obj, {
    type: "rotation",
    bounds: {
      minRotation: rotMin,
      maxRotation: rotMax
    },
    onDrag: updateColor
  });
  dial.index = i;
  if (i === 3) {
    gsap.set(obj, { rotation: rotMax }); // alpha dial should initially be at 1
  }
});

function updateColor() {
  let i = this.index;
  let rot = this.rotation;
  let round = i === 3 && rot < rotMax && rot > rotMin ? 2 : 0;
  color[i] = gsap.utils
    .mapRange(rotMin, rotMax, 0, upperRange[i], rot)
    .toFixed(round);
  let newColor = `hsla(${color[0]}, ${color[1]}%, ${color[2]}%, ${color[3]})`;
  hslaData.innerText = colorContainer.style.backgroundColor = newColor;
}

              
            
!
999px

Console