What color is Envelope, George F. Scheer, Chapel Hill, NC ?

Source Crayola® CSS3 CSS4
#6e6e62
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#49483d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey