What color is Unknown ?

Source Crayola® CSS3 CSS4
#8fa4a5
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#99947d
 
#95918c
gray
#808080
grey
#808080
grey
#616355
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey