Scrape Material Design colors from public site

scrape.js

var us = document.createElement('script');
us.src = 'https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js';
document.body.appendChild(us);

setTimeout(() => {
  window.palettes = {};

  _.each(document.querySelectorAll('.color-group:not(:last-child)'), (group) => {
    var nameElement = group.querySelector('.name');
    if (!nameElement) return;

    var paletteName = nameElement.textContent.trim();

    palettes[paletteName] = _.map(group.querySelectorAll('.color:not(.main-color)'), (color) => {
      return {
        hue: color.querySelector('.shade').textContent.trim(),
        hex: color.querySelector('.hex').textContent.trim(),
        contrast: window.getComputedStyle(color).color
      };
    });

  });

  console.log('Done: colors stored to window.palettes');
}, 100);