What color is "Hans Sloane" Botanical Plate (One of Twelve) Plate, ca. 1757–1769 ?

Source Crayola® CSS3 CSS4
#839a8e
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#816f58
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey
#b0ac86
 
#bab86c
olive green
#bdb76b
dark khaki
#bdb76b
darkkhaki
#544536
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen