What color is Unknown ?

Source Crayola® CSS3 CSS4
#9f9379
 
#9f8170
beaver
#bc8f8f
rosy brown
#bc8f8f
rosybrown
#7f7761
 
#8a795d
shadow
#696969
dim grey
#696969
dimgrey
#5c5442
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#2b271c
 
#414a4c
outer space
#000000
black
#000000
black