Source Crayola® CSS3 CSS4
#6c8da7
 
#6699cc
blue gray
#778899
light slate grey
#778899
lightslategrey
#456f94
 
#2e5894
b'dazzled blue
#4682b4
steel blue
#4682b4
steelblue
#90a9b8
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey