Source Crayola® CSS3 CSS4
#342d27
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#647d85
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#a4c6c8
 
#b0b7c6
cadet blue
#b0c4de
light steel blue
#b0c4de
lightsteelblue
#3d4645
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey