JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>
  <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>
  <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>
    <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>
    <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>
  <tr>
  <td>1</td><td>2</td><td>3</tD>
  </tr>      
  </table>

CSS

table tr:nth-child(1){
background-color:#bbccaa
}
table tr:nth-child(2){
background-color:#aabbcc
}
table tr:nth-child(3){
background-color:#bbaacc
}