simantle.js

var ants = [
    '<span style="filter: brightness(0%) saturate(0%)">🐜</span>', // black
    '<span style="filter: brightness(220%) saturate(600%) hue-rotate(150deg)">🐜</span>', // red
    '<span style="filter: brightness(470%) saturate(1000%) hue-rotate(244deg)">🐜</span>', // yellow
];

function one_ant() {
    return ants[Math.floor(Math.random() * 2.2)]; // small chance of yellow
}

function some_ants() {
    var answer = "";
    var i = Math.floor(Math.random() * 12 + 3);
    while (i--) {
        answer += one_ant();
    }
    return answer;
}

document.querySelectorAll('#guesses tr td:nth-of-type(2)').forEach(el => el.innerHTML = some_ants());