What color is Bound Print, Allegorical Frontispiece, 1751 ?

Source Crayola® CSS3 CSS4
#98988c
 
#95918c
gray
#808080
grey
#808080
grey
#76796e
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#545750
 
#414a4c
outer space
#696969
dim grey
#696969
dimgrey
#383a3b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey