var palette = [
  '#7a9fdc', '#4878d0', '#2e5aa8', '#1d4580',
  '#f4a876', '#ee854a', '#d66b28', '#b5561a',
  '#8fdb8a', '#6acc64', '#4ab345', '#359a2e',
  '#e38888', '#d65f5f', '#c03a3a', '#a02525',
  '#b18fca', '#956cb4', '#7a4e9d', '#5f3880',
  '#a9806a', '#8c613c', '#6f4623', '#543316',
  '#e8a4d6', '#dc7ec0', '#ca5aa9', '#b03d91',
  '#9a9a9a', '#797979', '#5a5a5a', '#3e3e3e',
  '#e3d08f', '#d5bb67', '#c4a73f', '#a88d25',
  '#a7dbee', '#82c6e2', '#5bb0d5', '#3a95bf'
];