JSFiddle - React, Tailwind, and code Playground
Change second part of string
HTML
<p class="list-title">Carson Fields, Gallaxia</p>
<p class="list-title">Hugo Carneiro, Fliplet</p>
CSS
.list-title span {
color: blue;
}
JavaScript
$('.list-title').each(function(index) {
var text = $(this).text();
var array = text.split(',');
array[1] = "<span>" + array[1] + "</span>";
var newText = array.toString();
$(this).html(newText);
});