100/0

#000000

90/10

#0b1212

80/20

#172424

70/30

#223737

60/40

#2e4949

50/50

#395b5b

40/60

#446d6d

30/70

#507f7f

20/80

#5b9292

10/90

#67a4a4

0/100

#72b6b6