What color is Print, Plan and Elevation for the Chapel of the Assumption in the Clementine College of the Fathers of the Congregation of Somasca ?

Source Crayola® CSS3 CSS4
#9a9582
 
#95918c
gray
#808080
grey
#808080
grey
#747467
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#4f534c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey