JSFiddle - React, Tailwind, and code Playground

HTML

Paint Seed: <span class="test">899</span><br>
Paint Seed: <span class="test">300</span><br>
Paint Seed: <span class="test">400</span><br>
Paint Seed: <span class="test">650</span><br>
Paint Seed: <span class="test">400</span><br>
Paint Seed: <span class="test">500</span><br>
Paint Seed: <span class="test">300</span><br>
Paint Seed: <span class="test">500</span><br>

JavaScript

let arrAll = document.querySelectorAll('.test');
let searchMy = [400,300];//нужные значения
for(let i = 0; i<arrAll.length;i++){
let result = searchMy.filter(test => test == arrAll[i].innerHTML);
if(result.length !== 0){
arrAll[i].style.color="red";
}
}