let array = [
  {
    id: "1",
    name: "Table1",
    color: "red"
  },
  {
    id: "2",
    name: "Table1",
    color: "magenta"
  },
  {
    id: "3",
    name: "Table1",
    color: "red"
  },
  {
    id: "4",
    name: "Table2",
    color: "red"
  }
];

let groupBy = (array, key) => {
  let groups = [];
  let set = new Set();
  array.forEach(e => {
    set.add(e[key]);
  });
  set.forEach(s => {
    const [...el] = array.filter(f => f[key] === s);
    groups.push(el);
  });
  return groups;
};

let groupedArray = groupBy(array, "name");

let newArray = [];
groupedArray.forEach( e => {
    newArray.push(groupBy(e, "color"));
})