orderObjectBy.html

<ul>
  <li ng-repeat="item in items | orderObjectBy:'color':true">{{ item.color }}</li>
</ul>

orderObjectBy.js

var app = angular.module('sample');

// inside your controller
$scope.items = {};
$scope.items['color-1'] = {color: "red"};
$scope.items['color-2'] = {color: "green"};
$scope.items['color-3'] = {color: "blue"};

// define filter on app
app.filter('orderObjectBy', function() {
  return function(items, field, reverse) {
    var filtered = [];
    angular.forEach(items, function(item) {
      filtered.push(item);
    });
    filtered.sort(function (a, b) {
      if(a[field] > b[field]) return 1;
      if(a[field] < b[field]) return -1;
      return 0;
    });
    if(reverse) filtered.reverse();
    return filtered;
  };
});