What color is Drawing, Study for Illustration, The Castle ?

Source Crayola® CSS3 CSS4
#89877d
 
#95918c
gray
#808080
grey
#808080
grey
#4d4e48
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#b8b6a9
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#6c6b64
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey