What color is Print, Optical Toy: "Mount Vesuvius" (Spooner's Protean Views) ?

Source Crayola® CSS3 CSS4
#e4ddc9
 
#efdecd
almond
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#525049
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#878877
 
#9f8170
beaver
#808080
grey
#808080
grey
#6e6d5e
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#67504e
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey