What color is Print, Basilica of S. Lorenzo fuori le Mura, "Le Vedute di Roma" (1745-1778), 1748–78 ?

Source Crayola® CSS3 CSS4
#625c5b
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#292b2d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#4f5145
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey