JSFiddle - React, Tailwind, and code Playground

HTML

<select id="mySelect">
      <option selected="selected">option 1</option>
      <option>option 2</option>
      <option>option 3</option>
   </select>

CSS

select {
    color: green;
}

option[selected] {
    color: green;
}

option {
    color: black;
}