Source Crayola® CSS3 CSS4
#cdcdbd
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#42636b
 
#4a646c
deep space sparkle
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#738787
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey