<table style="width: 100%;">
  <tr>
    <td onclick="changeColor('#000')" style="background-color: #000;">
      &nbsp;
    </td>
    <td onclick="changeColor('#191919')" style="background-color: #191919;">
      &nbsp;
    </td>
    <td onclick="changeColor('#323232')" style="background-color: #323232;">
      &nbsp;
    </td>
    <td onclick="changeColor('#4c4c4c')" style="background-color: #4c4c4c;">
      &nbsp;
    </td>
    <td onclick="changeColor('#666666')" style="background-color: #666666;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#7f7f7f')" style="background-color: #7f7f7f;">
      &nbsp;
    </td>
    <td onclick="changeColor('#b2b2b2')" style="background-color: #b2b2b2;">
      &nbsp;
    </td>
    <td onclick="changeColor('#cccccc')" style="background-color: #cccccc;">
      &nbsp;
    </td>
    <td onclick="changeColor('#e5e5e5')" style="background-color: #e5e5e5;">
      &nbsp;
    </td>
    <td onclick="changeColor('#fff')" style="background-color: #fff;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#ff0000')" style="background-color: #ff0000;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ff3232')" style="background-color: #ff3232;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ff6666')" style="background-color: #ff6666;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ff9999')" style="background-color: #ff9999;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffcccc')" style="background-color: #ffcccc;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#FFA500')" style="background-color: #FFA500;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffb732')" style="background-color: #ffb732;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffc966')" style="background-color: #ffc966;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffdb99')" style="background-color: #ffdb99;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffedcc')" style="background-color: #ffedcc;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#ffff00')" style="background-color: #ffff00;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffff32')" style="background-color: #ffff32;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffff66')" style="background-color: #ffff66;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffff99')" style="background-color: #ffff99;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ffffcc')" style="background-color: #ffffcc;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#008000')" style="background-color: #008000;">
      &nbsp;
    </td>
    <td onclick="changeColor('#329932')" style="background-color: #329932;">
      &nbsp;
    </td>
    <td onclick="changeColor('#4ca64c')" style="background-color: #4ca64c;">
      &nbsp;
    </td>
    <td onclick="changeColor('#7fbf7f')" style="background-color: #7fbf7f;">
      &nbsp;
    </td>
    <td onclick="changeColor('#b2d8b2')" style="background-color: #b2d8b2;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#0000ff')" style="background-color: #0000ff;">
      &nbsp;
    </td>
    <td onclick="changeColor('#3232ff')" style="background-color: #3232ff;">
      &nbsp;
    </td>
    <td onclick="changeColor('#6666ff')" style="background-color: #6666ff;">
      &nbsp;
    </td>
    <td onclick="changeColor('#9999ff')" style="background-color: #9999ff;">
      &nbsp;
    </td>
    <td onclick="changeColor('#ccccff')" style="background-color: #ccccff;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#4b0082')" style="background-color: #4b0082;">
      &nbsp;
    </td>
    <td onclick="changeColor('#6e329b')" style="background-color: #6e329b;">
      &nbsp;
    </td>
    <td onclick="changeColor('#9366b4')" style="background-color: #9366b4;">
      &nbsp;
    </td>
    <td onclick="changeColor('#b799cd')" style="background-color: #b799cd;">
      &nbsp;
    </td>
    <td onclick="changeColor('#dbcce6')" style="background-color: #dbcce6;">
      &nbsp;
    </td>
  </tr>
  <tr>
    <td onclick="changeColor('#ee82ee')" style="background-color: #ee82ee;">
      &nbsp;
    </td>
    <td onclick="changeColor('#f19bf1')" style="background-color: #f19bf1;">
      &nbsp;
    </td>
    <td onclick="changeColor('#f4b4f4')" style="background-color: #f4b4f4;">
      &nbsp;
    </td>
    <td onclick="changeColor('#f8cdf8')" style="background-color: #f8cdf8;">
      &nbsp;
    </td>
    <td onclick="changeColor('#fbe6fb')" style="background-color: #fbe6fb;">
      &nbsp;
    </td>
  </tr>
</table>
