Numer 8 as offered by Alden actually IS much darker that it used to be. Even in bright light, some new ones do look almost black. Sunlight will burn away the additional dye. Underneath, as has been said, they are a quite beautiful brown-burgundy range of colors and tones.
the two shoes in the middle are #8 burgundy. one is the Alden monkstrap, from circa 2000, new old stock (not worn yet). two is vintage Nettleton PTB, probably from late 80s or older, well-worn.