Source Crayola® CSS3 CSS4
#d5d1be
 
#cdc5c2
silver
#d3d3d3
light gray
#d3d3d3
lightgrey
#7f8d9c
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#5e6e87
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#425273
 
#4a646c
deep space sparkle
#483d8b
dark slate blue
#483d8b
darkslateblue