loops.yaml

- hosts: localhost
  tasks:
    - debug: 
        msg: "nested test a={{ item[0] }} b={{ item[1] }} c={{ item[2] }}"
      vars:
        elements:
          - [ 'red', 'blue', 'green' ]
          - [ 1, 2, 3 ]
          - [ 'up', 'down', 'strange']
      loop: "{{ lookup('nested', elements) }}"

output

$ pip install --user ansible==2.5.0b2
$ $ ansible-playbook loops.yaml      
 [WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'


PLAY [localhost] ******************************************************************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************************************************************
ok: [localhost]

TASK [debug] **********************************************************************************************************************************************************************************
ok: [localhost] => (item=[u'red', u'blue', u'green']) => {
    "changed": false, 
    "failed": false, 
    "item": [
        "red", 
        "blue", 
        "green"
    ], 
    "msg": "nested test a=red b=blue c=green"
}
ok: [localhost] => (item=[1, 2, 3]) => {
    "changed": false, 
    "failed": false, 
    "item": [
        1, 
        2, 
        3
    ], 
    "msg": "nested test a=1 b=2 c=3"
}
ok: [localhost] => (item=[u'up', u'down', u'strange']) => {
    "changed": false, 
    "failed": false, 
    "item": [
        "up", 
        "down", 
        "strange"
    ], 
    "msg": "nested test a=up b=down c=strange"
}

PLAY RECAP ************************************************************************************************************************************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0   

with_nested.yaml

- hosts: localhost
  tasks:
    - shell: echo "nested test a={{ item[0] }} b={{ item[1] }} c={{ item[2] }}"
      with_nested:
        - [ 'red', 'blue', 'green' ]
        - [ 1, 2, 3 ]
        - [ 'up', 'down', 'strange']