Adding ruby colour to my beer

[tobykilroy]

Morning All,

Can anyone tell me how to add a deep ruby colour to my ale (AG).
I am in the process of designing a nice deep ale, and I'm trying to achieve a similar ruby red colour as seen in the likes of Hobgoblin.

Any thoughts?

Cheers

p.s. food colouring is out! Only natural beers here!

 

[Aleman]

Dark Crystal malt or Roast barley . . . only need a couple of ounces in a 25L batch