100/0

#6cbcbc

90/10

#61a9a9

80/20

#569696

70/30

#4c8484

60/40

#417171

50/50

#365e5e

40/60

#2b4b4b

30/70

#203838

20/80

#162626

10/90

#0b1313

0/100

#000000