Source Crayola® CSS3 CSS4
#323135
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5a72ab
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue
#9aa2b9
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey