What color is Sketchbook, Page 11, Sketchbook with Designs for Semiramis Hotel, Athens, Greece and Other Objects, 2000 ?

Source Crayola® CSS3 CSS4
#aeaca5
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#847f7a
 
#757575
sonic silver
#808080
grey
#808080
grey
#54524e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey