Source Crayola® CSS3 CSS4
#333f9d
 
#324ab2
violet blue
#483d8b
dark slate blue
#483d8b
darkslateblue
#2f2b44
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#251a5e
 
#1a4876
midnight blue
#191970
midnight blue
#191970
midnightblue
#4d6dbe
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue
#64648a
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey