What color is Drawing, Designs after 17th Century Dutch Tiles ?

Source Crayola® CSS3 CSS4
#a1a1ab
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7c819c
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#5e6588
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey