Source Crayola® CSS3 CSS4
#2f2e2a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#6a858e
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#546568
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#afc1a5
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey