What color is Swatch (possibly England), 20th century ?

Source Crayola® CSS3 CSS4
#5f6b65
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#29322f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#3e504b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#79847d
 
#757575
sonic silver
#808080
grey
#808080
grey