What color is Unknown ?

Source Crayola® CSS3 CSS4
#a59f81
 
#95918c
gray
#bc8f8f
rosy brown
#bc8f8f
rosybrown
#3e3728
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#7c6e54
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey
#5b5643
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen