Crossword puzzle clue "dark or iron"

Source of "Say! In the dark? Here in the dark! Would you, could you, in the dark?"

One of the Iron Chefs on "Iron Chef America"

The iron giant in "The Iron Giant"

Tony Stark/Iron Man's nemesis in "Iron Man 3," a supervillain played by Ben Kingsley: 2 wds.

Dark or iron

"It builds strong bones, but who cares in this dark, dark world..."

Dark as dark can be

Dark purplish-brown to dark red