Source Crayola® CSS3 CSS4
#a5b5ba
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#5c6d84
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#8a8f96
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#4a536f
 
#4a646c
deep space sparkle
#483d8b
dark slate blue
#483d8b
darkslateblue