What color is Kubus Stacking Storage Container Set, 1938 ?

Source Crayola® CSS3 CSS4
#50555f
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#8e929c
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#151322
 
#000000
black
#000000
black
#000000
black
#6b737c
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#323440
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey