JSFiddle - React, Tailwind, and code Playground

JavaScript

var info="fill:#010011;fill:#010012;fill:#010013;fill:#0A0014;";
var m, regex = /fill\:(\#[A-F0-9]+)[;]/gi;
var colors = [];

do {
    m = regex.exec(info);
    if (m)
        colors.push(m[1]);
} while (m);

alert(colors);