Source Crayola® CSS3 CSS4
#6778c4
 
#5d76cb
indigo
#6a5acd
slate blue
#6a5acd
slateblue
#495db6
 
#324ab2
violet blue
#4682b4
steel blue
#4682b4
steelblue
#8f97bd
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey