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Please enable your microphone.

Please close any other tabs/windows containing speech API projects, even if only showing the preview window. 


<h1>Say Color:</h1>

<div class="color-cube">
    <div class="cube-face cube-front"></div>
    <div class="cube-face cube-back"></div>
    <div class="cube-face cube-bottom"></div>
    <div class="cube-face cube-top"></div>
    <div class="cube-face cube-left"></div>
    <div class="cube-face cube-right"></div>

<p class="color-name">orange</p>

<p class="heard-output">Heard: orange</p>

<p class="confidence-output">Confidence: 100.0%</p>

<a class="colors-list" href="" target="_blank">List of colors</a>


                * {
    box-sizing: border-box;

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-family: 'Roboto', Arial, sans-serif;
    text-align: center;
    min-height: 100vh;
    background-color: #fbfbfb;
    padding: 15px;
    color: #111;
    perspective: 1000px;
    text-shadow: 0.05em 0.05em 0.05em rgba(0, 0, 0, 0.1);

h1 {
    font-size: 50px;
    font-weight: 500;
    margin-bottom: 50px;

.color-cube {
    --cube-color: orange;
    position: relative;
    width: 140px;
    height: 140px;
    transform-style: preserve-3d;
    transform: rotateX(-20deg) rotateY(-40deg);
    animation: rotateCube 5s linear infinite;

.cube-face {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(0, 0, 0, 0.4);
    background-color: var(--cube-color);
    transition: background-color 500ms;

.cube-front {
    transform: translateZ(70px);

.cube-back {
    transform: rotateY(180deg) translateZ(70px);

.cube-bottom {
    transform: rotateX(-90deg) translateZ(70px);

.cube-top {
    transform: rotateX(90deg) translateZ(70px);

.cube-left {
    transform: rotateY(-90deg) translateZ(70px);

.cube-right {
    transform: rotateY(90deg) translateZ(70px);

.color-name {
    font-size: 40px;
    font-weight: 500;
    margin: 55px 0 30px;

.confidence-output {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 18px;

.colors-list {
    font-size: 20px;
    font-weight: 700;
    color: #111;
    text-decoration: none;
    border-bottom: 2px solid #111;
    margin-top: 10px;

@keyframes rotateCube {
    to {
        transform: rotateX(-20deg) rotateY(-400deg);


                //DOM load event
window.addEventListener("DOMContentLoaded",	() => {

    //Check that page is not running in a CodePen preview iframe

    //Set speech recognition
    window.SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;

    const recognition = new SpeechRecognition(),
          colorName = document.querySelector('.color-name'),
          colorCube = document.querySelector('.color-cube'),
          heardOutput = document.querySelector('.heard-output'),
          confidenceOutput = document.querySelector('.confidence-output'),
          cssColorNames = ["aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod", "darkgray", "darkgrey", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet", "deeppink", "deepskyblue", "dimgray", "dimgrey", "dodgerblue", "firebrick", "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender", "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgrey", "lightgreen", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey", "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", "slateblue", "slategray", "slategrey", "snow", "springgreen", "steelblue", "tan", "teal", "thistle", "tomato", "transparent", "turquoise", "violet", "wheat", "white", "whitesmoke", "yellow", "yellowgreen"];

    //Start speech recognition

    //Listen for when the user finishes talking
    recognition.addEventListener('result', e => {

        //Get transcript of user speech & confidence percentage
        const transcript = e.results[0][0].transcript.toLowerCase().replace(/\s/g, ''),
              confidence = (e.results[0][0].confidence * 100).toFixed(1);

        //Check if transcript is valid color value
        if(cssColorNames.includes(transcript)) {

            //Set cube color;
  '--cube-color', transcript);

            //Set color name text value
            colorName.textContent = transcript;


        //Output transcript
        heardOutput.textContent = `Heard: ${transcript}`;

        //Output transcript confidence percentage
        confidenceOutput.textContent = `Confidence: ${confidence}%`;


    //Restart speech recognition after user has finished talking
    recognition.addEventListener('end', recognition.start);