JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr>
    <td><div class="block" style="background-color: #FF6900">#FF6900</div></td>
    <td><div class="block" style="background-color: #E6C8B3">#E6C8B3</div></td>
    <td><div class="block" style="background-color: #D29E79">#D29E79</div></td>
    <td><div class="block" style="background-color: #BF7540">#BF7540</div></td>
    <td><div class="block" style="background-color: #86522D">#86522D</div></td>
    <td><div class="block" style="background-color: #4D2F19">#4D2F19</div></td>
  </tr>
  <tr>
    <td><div class="block" style="background-color: #FCB900">#FCB900</div></td>
    <td><div class="block" style="background-color: #E6D8B3">#E6D8B3</div></td>
    <td><div class="block" style="background-color: #D2BA79">#D2BA79</div></td>
    <td><div class="block" style="background-color: #BF9D40">#BF9D40</div></td>
    <td><div class="block" style="background-color: #866E2D">#866E2D</div></td>
    <td><div class="block" style="background-color: #4D3F19">#4D3F19</div></td>
  </tr>
  <tr>
    <td><div class="block" style="background-color: #7BDCB5">#7BDCB5</div></td>
    <td><div class="block" style="background-color: #B3E6D1">#B3E6D1</div></td>
    <td><div class="block" style="background-color: #79D2AE">#79D2AE</div></td>
    <td><div class="block" style="background-color: #40BF8C">#40BF8C</div></td>
    <td><div class="block" style="background-color: #2D8662">#2D8662</div></td>
    <td><div class="block" style="background-color: #194D38">#194D38</div></td>
  </tr>
  <tr>
    <td><div class="block" style="background-color: #00D084">#00D084</div></td>
    <td><div class="block" style="background-color: #B3E6D3">#B3E6D3</div></td>
    <td><div class="block" style="background-color: #79D2B1">#79D2B1</div></td>
    <td><div class="block" style="background-color: #40BF90">#40BF90</div></td>
    <td><div class="block" style="background-color: #2D8665">#2D8665</div></td>
    <td><div class="block" style="background-color: #194D3A">#194D3A</div></td>
  </tr>
  <tr>
  ...

CSS

.block {
  padding: 5px;
  border-radius: 4px;
  width: 80px;
  text-align: center;
  color: #ffffff;
}