What color is Drawing, Preparatory Sketch for Enignum Free Form Chair ?

Source Crayola® CSS3 CSS4
#bebdc7
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver
#999aa4
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#73737a
 
#757575
sonic silver
#808080
grey
#808080
grey