What color is Sheath ?

Source Crayola® CSS3 CSS4
#3a2a1a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#664d37
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#a4a397
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#797266
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey