Source Crayola® CSS3 CSS4
#6c828a
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#afc3cb
 
#b0b7c6
cadet blue
#b0c4de
light steel blue
#b0c4de
lightsteelblue
#5b6669
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey