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HTML

            
              #app.section
  .row
    h1 Material Color Picker

    //- カラーパレット
    .col.s12.l7#color-palette
      .row
        -
          // 彩度
          var saturation = [
            { value: "50", label: "lighten-5" },
            { value: "100", label: "lighten-4" },
            { value: "200", label: "lighten-3" },
            { value: "300", label: "lighten-2" },
            { value: "400", label: "lighten-1" },
            { value: "500" },
            { value: "600", label: "darken-1" },
            { value: "700", label: "darken-2" },
            { value: "800", label: "darken-3" },
            { value: "900", label: "darken-4" },
            { value: "A100", label: "accent-1" },
            { value: "A200", label: "accent-2" },
            { value: "A400", label: "accent-3" },
            { value: "A700", label: "accent-4" }
          ];

          // 色相
          var hue = [
            { name: "red", colors: ["ffebee", "ffcdd2", "ef9a9a", "e57373", "ef5350", "f44336", "e53935", "d32f2f", "c62828", "b71c1c", "ff8a80", "ff5252", "ff1744", "d50000"] },
            { name: "pink", colors: ["fce4ec", "f8bbd0", "f48fb1", "f06292", "ec407a", "e91e63", "d81b60", "c2185b", "ad1457", "880e4f", "ff80ab", "ff4081", "f50057", "c51162"] },
            { name: "purple", colors: ["f3e5f5", "e1bee7", "ce93d8", "ba68c8", "ab47bc", "9c27b0", "8e24aa", "7b1fa2", "6a1b9a", "4a148c", "ea80fc", "e040fb", "d500f9", "aa00ff"] },
            { name: "deep purple", colors: ["ede7f6", "d1c4e9", "b39ddb", "9575cd", "7e57c2", "673ab7", "5e35b1", "512da8", "4527a0", "311b92", "b388ff", "7c4dff", "651fff", "6200ea"] },
            { name: "indigo", colors: ["e8eaf6", "c5cae9", "9fa8da", "7986cb", "5c6bc0", "3f51b5", "3949ab", "303f9f", "283593", "1a237e", "8c9eff", "536dfe", "3d5afe", "304ffe"] },
            { name: "blue", colors: ["e3f2fd", "bbdefb", "90caf9", "64b5f6", "42a5f5", "2196f3", "1e88e5", "1976d2", "1565c0", "0d47a1", "82b1ff", "448aff", "2979ff", "2962ff"] },
            { name: "light blue", colors: ["e1f5fe", "b3e5fc", "81d4fa", "4fc3f7", "29b6f6", "03a9f4", "039be5", "0288d1", "0277bd", "01579b", "80d8ff", "40c4ff", "00b0ff", "0091ea"] },
            { name: "cyan", colors: ["e0f7fa", "b2ebf2", "80deea", "4dd0e1", "26c6da", "00bcd4", "00acc1", "0097a7", "00838f", "006064", "84ffff", "18ffff", "00e5ff", "00b8d4"] },
            { name: "teal", colors: ["e0f2f1", "b2dfdb", "80cbc4", "4db6ac", "26a69a", "009688", "00897b", "00796b", "00695c", "004d40", "a7ffeb", "64ffda", "1de9b6", "00bfa5"] },
            { name: "green", colors: ["e8f5e9", "c8e6c9", "a5d6a7", "81c784", "66bb6a", "4caf50", "43a047", "388e3c", "2e7d32", "1b5e20", "b9f6ca", "69f0ae", "00e676", "00c853"] },
            { name: "light green", colors: ["f1f8e9", "dcedc8", "c5e1a5", "aed581", "9ccc65", "8bc34a", "7cb342", "689f38", "558b2f", "33691e", "ccff90", "b2ff59", "76ff03", "64dd17"] },
            { name: "lime", colors: ["f9fbe7", "f0f4c3", "e6ee9c", "dce775", "d4e157", "cddc39", "c0ca33", "afb42b", "9e9d24", "827717", "f4ff81", "eeff41", "c6ff00", "aeea00"] },
            { name: "yellow", colors: ["fffde7", "fff9c4", "fff59d", "fff176", "ffee58", "ffeb3b", "fdd835", "fbc02d", "f9a825", "f57f17", "ffff8d", "ffff00", "ffea00", "ffd600"] },
            { name: "amber", colors: ["fff8e1", "ffecb3", "ffe082", "ffd54f", "ffca28", "ffc107", "ffb300", "ffa000", "ff8f00", "ff6f00", "ffe57f", "ffd740", "ffc400", "ffab00"] },
            { name: "orange", colors: ["fff3e0", "ffe0b2", "ffcc80", "ffb74d", "ffa726", "ff9800", "fb8c00", "f57c00", "ef6c00", "e65100", "ffd180", "ffab40", "ff9100", "ff6d00"] },
            { name: "deep orange", colors: ["fbe9e7", "ffccbc", "ffab91", "ff8a65", "ff7043", "ff5722", "f4511e", "e64a19", "d84315", "bf360c", "ff9e80", "ff6e40", "ff3d00", "dd2c00"] },
            { name: "brown", colors: ["efebe9", "d7ccc8", "bcaaa4", "a1887f", "8d6e63", "795548", "6d4c41", "5d4037", "4e342e", "3e2723"] },
            { name: "grey", colors: ["fafafa", "f5f5f5", "eeeeee", "e0e0e0", "bdbdbd", "9e9e9e", "757575", "616161", "424242", "212121"] },
            { name: "blue grey", colors: ["eceff1", "cfd8dc", "b0bec5", "90a4ae", "78909c", "607d8b", "546e7a", "455a64", "37474f", "263238"] }
          ];

        table
          thead.hide-on-small-only
            tr
              th &nbsp;
              each item in saturation
                th.center(:class=`{ active: '${item.value}' == color.value }`) !{item.value.replace("A", "A<br>")}
                
          tbody
            each hueItem in hue
              tr
                //- th.white-text(class=`${hueItem.name}`) #{hueItem.name}
                //- 色名
                th(:class=`{ active: '${hueItem.name}' == color.hue }`) #{hueItem.name}
                
                //- カラーパレット
                each hex, index in hueItem.colors
                  -
                    var materializeHueName = hueItem.name.replace(" ", "-");  // スペースをハイフンに置き換える(ex. "deep purple"→"deep-purple") 
                    var materializeClass = [materializeHueName];  // materializeの色を設定するクラス名
                    if (saturation[index].label) {
                      materializeClass.push(saturation[index].label);
                    }
                    
                  td(
                    class=`${materializeHueName} ${saturation[index].label}`,
                    :class=`{
                      active: hex == '${hex}',
                      'same-hue': color.hue == '${hueItem.name}',
                      'same-tone': color.value == '${saturation[index].value}'}`, data-hex=`${hex}`
                  )
                    - var changeColorFunc = `changeColor('#${hex}', '${hueItem.name}', '${saturation[index].value}', '${materializeClass}', $event)`;
                    a(@click.prevent=`${changeColorFunc}`, @mousedown.prevent=`${changeColorFunc}`)
                    

    //- 選択した色の詳細
    .col.s12.l5#color-info(v-bind:class="{ darken: luminance < 140 }")
      .row.z-depth-1.color-info__background(v-bind:class="color.materializeClass.join(' ')")
        .col.s12
          h3 {{ color.hue }} / {{ color.value }}

          form.col.s12
            -
              // 出力のラベルと書式
              var output = [
                { label: "HEX", value: "#{{ hex }}" },
                { label: "RGB", value: "rgb({{ rgb[0] }}, {{ rgb[1] }}, {{ rgb[2] }})" },
                { label: "CSS Background Color", value: "background-color: rgba({{ rgb[0] }}, {{ rgb[1] }}, {{ rgb[2] }}, 1);" },
                { label: "Swift UIColor RGB", value: "UIColor(red: {{ rgbDouble[0] }}, green: {{ rgbDouble[1] }}, blue: {{ rgbDouble[2] }}, alpha: 1.0)" },
                { label: "Materialize css（background color）", value: "{{ color.materializeClass.join(' ') }}" },
                { label: "Materialize css（text color）", value: "{{ color.materializeTextClass.join(' ') }}" }
              ]

            each item, index in output
              .row
                .col.s12
                  label #{item.label}
                .col.s12
                  //- .waves-effect をつけると、スマホでリンクの位置をタップしてページスクロールすると変な挙動になるのでつけない
                  a.copy-code.btn-flat.right
                    i.material-icons content_copy
                  .code #{item.value}
!

CSS

            
              @use postcss-simple-vars;
@use postcss-custom-media;
@use postcss-simple-vars;
@use postcss-nested;

@custom-media --phone (max-width: 600px);
@custom-media --tablet (max-width: 992px);
@custom-media --desktop (max-width: 1200px);
@custom-media --large-desktop (min-width: 1201px);


body {
  margin-left: 20px;
  margin-right: 20px;
}

@media (--phone) {
  body {
    margin-left: 0;
    margin-right: 0;
  }
}

h1 {
  font-size: 2.5rem;
}

/* カラーパレット*/
#color-palette{
  table {
    border-collapse: separate;
    /* border-spacing: 1px; */
    
    thead {
      th {
        vertical-align: bottom;
        line-height: 1.4;
        color: #bdbdbd;
        font-size: 0.9rem;
        padding-top: 0;
        padding-bottom: 5px;
        border-radius: 0;

        /* 選択中 */
        &.active {
          color: #424242;
          background-color: #cfd8dc;
        }
      }
    }
    
    tbody {
      height: 300px;
      overflow: auto;
      
      th {
        width: 80px;
        color: #424242;
        line-height: 1.2;
        text-transform: capitalize;
        border-radius: 0;
          
        /* 選択中　*/
        &.active {
          /* color: #fff; */
          background-color: #cfd8dc;
        }
      }

      td {
        $border: solid 2px rgba(255, 255, 255, .7);
        $active-border: solid 5px rgba(255, 255, 255, .9);
        
        position: relative;
        width: 6.5%;
        border-radius: 0;
        border-right: solid 1px rgba(255, 255, 255, .3);
        border-bottom: solid 1px rgba(255, 255, 255, .3);
        
        /* 同じ色相 */
        &.same-hue {
          border-top: $border;
          border-bottom: $border;
        }
        
        /* 同じ階調 */
        &.same-tone {
          border-left: $border;
          border-right: $border;
        }
        
        /* 選択中　*/
        &.active {
          border: $active-border;
          transition: border-width 0.2s ease-out;
          
          a {
            cursor: default;
          }
        }
        
        /* ボタン */
        a {
          position: absolute;
          top: 0;
          left: 0;
          display: block;
          width: 100%;
          height: 100%;
          cursor: pointer;
        }
      }
    }
  }
}


/* 選択した色の情報 */
#color-info {
  position: sticky;
  top: 0;
  
  h3 {
    color: rgba(0, 0, 0, .87);
    text-transform: capitalize;
  }
  
  /* 背景色 */
  .color-info__background {
    transition: background-color 0.2s ease-out;
  }
  
  /* 色のコードをコピーするボタン */
  .copy-code {
    height: auto; /* 上書き */
    text-transform: none;
    padding-left: 0;
    padding-right: 0;
  }
  
  form {
    padding-top: 10px;
    margin-bottom: 10px;
    background-color: rgba(255, 255, 255, .8);
    border-radius: 2px;
  }
  
  .code {
    line-height: 1.4;
    padding-top: 0.5em;
    padding-bottom: 0.5em;
    margin-right: 30px; /* ボタンの分を空ける */
  }
  
  /* 背景色が暗いとき */
  &.darken {
    h3 {
      color: rgba(255, 255, 255, .87);
    }
  }
}
!

JS

            
              // デフォルト値
const initialStore = {
  hex: "f44336",  // 16進コード
  color: {
    hue: "red", // 色相
    value: "500", // 明度
    materializeClass: ["red"],  // materializeのクラス名
    materializeTextClass: ["red-text"] // materializeのテキストカラー
  }
};


const app = new Vue({
  el: '#app',
  data: initialStore,
  
  methods: {
    /**
     * 色を変更する
     *
     * @param hex {string} カラーコード
     * @param hueName {string} 色名（ex. "red", "green"）
     * @param colorValue {string} 明度(ex. "50", "100", "A100") 
     * materializeClass {[string]} クラス名の配列
     * event {Event} イベント
     */
    changeColor: function(hex, hueName, colorValue, materializeClass, event) {
      this.hex = hex.replace(/^#/, '');
      this.color.hue = hueName;
      this.color.value = colorValue;
      this.color.materializeClass = materializeClass.split(',');
      
      let textClass = [];
      materializeClass.split(',').forEach(function (value, index) {
        if (index === 0) {
          textClass.push(`${value}-text`);  // 色相
        }
        else if (index === 1) {
          textClass.push(`text-${value}`);  // 階調
        }
      });
      this.color.materializeTextClass = textClass;
      
      // if (event.type === 'click') {
      //   // 詳細にスクロールする
      //   scrollToInfo();
      // }
    }
  },
  
  computed: {
    /**
     * hexからrgbに変換する
     *
     * @return {[number]} RGBの配列
     */
    rgb: function () {
      const hex = this.hex;
      return [
        parseInt((hex).substring(0, 2), 16),
        parseInt((hex).substring(2, 4), 16),
        parseInt((hex).substring(4, 6), 16),
      ];
    },
    
    /**
     * hexからrgbに変換する（255を1とする）
     *
     * @return {[number]} RGBの配列
     */
    rgbPer: function () {
      return this.rgb.map((value) => (value / 255));
    },
    
    /**
     * hexからrgbに変換する（255を1.00とする）
     *
     * @return {[number]} RGBの配列
     */
    rgbDouble: function () {
      return this.rgbPer.map((value) => value.toFixed(3));
    },
    
    /**
     * 輝度
     *
     * @return {number} 輝度（0〜255）
     */
    luminance: function () {
      const rgb = this.rgb;
      const r = 0.298912;
      const g = 0.586611;
      const b = 0.114478;
      return Math.floor(r * rgb[0] + g * rgb[1] + b * rgb[2]);
    }
  }
});



//----------------------------------
//  詳細の位置にスクロール
//----------------------------------
const $window = $(window);
const $info = $('#color-info');

/**
   * 詳細の位置にスクロール
   *
   */
function scrollToInfo() {
  const to = $info.offset().top;
  
  // window scroll don't work for iPhone/iPad
  if (Math.abs($window.scrollTop() - to) > 150) {
    $("html, body")
      .dequeue()
      .stop()
      .animate({ scrollTop: to }, 250, 'swing');
  }
}


//----------------------------------
//  コードのボタンをクリックしてコピー
//----------------------------------
const clipboard = new Clipboard('.copy-code', {
  text: function(trigger) {
    const $this = $(trigger);
    return $this.next().text();
  }
});


clipboard.on('success', (e) => {
  // console.info('Action:', e.action);
  // console.info('Text:', e.text);
  // console.info('Trigger:', e.trigger);

  Materialize.Toast.removeAll();
  Materialize.toast(`<span class="green-text text-lighten-1">Copied!</span>&nbsp;${e.text}`, 5000);
});

clipboard.on('error', (e) => {
  Materialize.Toast.removeAll();
  Materialize.toast('<span class="red-text text-lighten-2">Copy to fail...</span>', 5000);
});


// // debug
// const $debug = $('<div></div>');
// $debug.css({
//   position: 'fixed',
//   top: 5,
//   right: 5,
//   backgroundColor: 'rgba(255, 255, 255, 0.6)',
//   border: 'solid 1px #f00'
// });
// $('body').append($debug);



// TODO 逆引きがしたい
!
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