What color is Sample (USA), 1937–61 ?

Source Crayola® CSS3 CSS4
#2c3157
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#49527e
 
#58427c
cyber grape
#483d8b
dark slate blue
#483d8b
darkslateblue