What color is Amy Swan Necklace, 1980–90 ?

Source Crayola® CSS3 CSS4
#56474b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#2c0e24
 
#000000
black
#000000
black
#000000
black
#7a636a
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#a9a098
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#8b7d7b
 
#9f8170
beaver
#808080
grey
#808080
grey