<script>

    function Save() {
        $(document).ready(function () {
            var things = [
        { id: 1, color: 'yellow' },
        { id: 2, color: 'blue' },
        { id: 3, color: 'red' }
        ];

                things = JSON.stringify({ 'things': things });

                $.ajax({
                    contentType: 'application/json; charset=utf-8',
                    dataType: 'json',
                    type: 'POST',
                    url: '/PassThings',
                    data: things,
                    success: function () {
                        alert("success");
                    },
                    failure: function (response) {
                        alert(response);
                    }
                });
            });

    }

</script>

<input type="button" value="Pass Things" onclick="JavaScript: Save();">

public class Thing
{
    public int Id { get; set; }
    public string Color { get; set; }
}

public void PassThings(List<Thing> things)
{
    var t = things;
}