JSFiddle - React, Tailwind, and code Playground
by jfriend00
HTML
<div id="test">Product name (colour)<br>Product name (colour)
</div>
CSS
.highlight {color: #F00;}
JavaScript
var o = document.getElementById("test")
o.innerHTML = o.innerHTML.replace(/\([^\)]*?\)/g, '<span class="highlight">$&</span>');