So I've been using Overleaf for some time now to manage my resumes. It allows me to have a base version and am able to programatically update it based on what role I'm interested in.

One of the features I like to update are  header color:

While applying to Stripe, I admired in particular the component system and design styles, especially the stripes. So what I decided to try and do was to match a few of the colors from the site as the headers and link texts.

So for fun I wrote this little script to run on the homepage:

const rgbMatch = /\(.*\)/;
const parensMatch = /\(|\)/g;
const rgbMatch = /rgb\(/;
const elementsToParse = 'stripe';
const stripeElements = document.getElementsByClassName(elementsToParse);

function getBackgroundColor(el) {
  if (!el) {
    return '';
  return window.getComputedStyle(el).getPropertyValue('background-color');

function getBackgroundAsPercent(rawBackgroundColor) {
  return rawBackgroundColor
    .replace(parensMatch, '')
    .map(val => parseInt(val))
    .map(num => (num / 255).toFixed(2))

const backgrounds = Array.from(stripeElements).map(el => getBackgroundColor(el));
Array.from(new Set(backgrounds)) // forces unique
  .filter(bgCol => bgCol.match(rgbMatch))
  .forEach(rawBackgroundColor => {
    const percentString = getBackgroundAsPercent(rawBackgroundColor);
    const borderColor = `border: 2px solid ${result.rawBackgroundColor};`;
    console.log(`%c{${percentString}}`, borderColor);

It yields something in the console like this:

This was part fun part neurosis, but it ended up displaying something I could plug into my Overleaf document like so:

\definecolor{color0}{rgb}{0,0,0}% black
\definecolor{color1}{rgb}{0.26,0.27,0.55}% stripe
\definecolor{color2}{rgb}{0.40,0.45,0.90}% dark grey

It's a short fun script to run on your favorite site. Replace the class you're looking for, switch up by replacing background-color with color or border, play around and make it your own!