JSFiddle - React, Tailwind, and code Playground

HTML

<div id="original">
  <img src="https://i.stack.imgur.com/JJ6Vs.png" height="150px" width="auto" />
</div>
<div id="silueta">
  <img src="https://i.stack.imgur.com/JJ6Vs.png" height="150px" width="auto" />
</div>

CSS

#silueta { background-color:red; display:inline-block; }
#silueta img {
  opacity:0.8;
}