I emailed Ron already, but just for the sake of everyone else. The ancient red hose are the same color as the ancient red garters -- and that color is ORANGE. Monitor settings may vary, of course, but there is no mistaking the color in person.

On my monitor here, the color shows up pretty true orange in both places, but your mileage may vary.

The reason it's called "ancient red" rather than simply "orange" I suppose is that red tartans, woven in the "ancient" colors, are orange.