Source Crayola® CSS3 CSS4
#363a36
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#667e84
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#b1d0d1
 
#b0b7c6
cadet blue
#b0c4de
light steel blue
#b0c4de
lightsteelblue
#4e5e60
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#adc0a0
 
#a8e4a0
granny smith apple
#a9a9a9
dark gray
#a9a9a9
darkgrey