lol dark can mean a lot of things
yes black is a
dark colour
but its not just plain dark (at least in the sense that it was used before)
dark
[dahrk]
adjective, -er, -est, noun, verb
–adjective
1. having very little or no light: a dark room.
2. radiating, admitting, or reflecting little light: a dark color.
3. approaching black in hue: a dark brown.
4. not pale or fair; swarthy: a dark complexion.
5. brunette; dark-colored: dark eyebrows.
6. having brunette hair: She's dark but her children are blond.
7. (of coffee) containing only a small amount of milk or cream.
8. gloomy; cheerless; dismal: the dark days of World War II.
9. sullen; frowning: a dark expression.
10. evil; iniquitous; wicked: a dark plot.
11. destitute of knowledge or culture; unenlightened.
12. hard to understand; obscure.
13. hidden; secret.
14. silent; reticent.
15. (of a theater) offering no performances; closed: The theaters in this town are dark on Sundays.
16. Phonetics.
a. (of an l-sound) having back-vowel resonance; situated after a vowel in the same syllable. Compare clear (def. 24a).
b. (of a speech sound) of dull quality; acoustically damped.
–noun
17. the absence of light; darkness: I can't see well in the dark.
18. night; nightfall: Please come home before dark.
19. a dark place.
20. a dark color.
–verb (used with object)
21. to make dark; darken.
–verb (used without object)
22. Obsolete. to grow dark; darken.
—Idioms
23. in the dark,
a. in ignorance; uninformed: He was in the dark about their plans for the evening.
b. in secrecy; concealed; obscure.
24. keep dark, to keep as a secret; conceal: They kept their political activities dark.