Source Crayola® CSS3 CSS4
#5e6f89
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#2d3546
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#d6d2ba
 
#cdc5c2
silver
#d3d3d3
light gray
#d3d3d3
lightgrey
#455474
 
#4a646c
deep space sparkle
#483d8b
dark slate blue
#483d8b
darkslateblue
#8b9397
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey