What color is Doorplate from the Guaranty Building Doorplate ?

Source Crayola® CSS3 CSS4
#3b3937
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5f5a57
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#7d7774
 
#757575
sonic silver
#808080
grey
#808080
grey
#9e9793
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#cfc6c3
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver