Source Crayola® CSS3 CSS4
#6b688e
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#29292f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#978ea0
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#585465
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey