Source Crayola® CSS3 CSS4
#8caeb7
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#393b38
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#6c8791
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#536061
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#b4d3d3
 
#c5d0e6
periwinkle
#b0c4de
light steel blue
#b0c4de
lightsteelblue