Source Crayola® CSS3 CSS4
#b1bcb3
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver
#607586
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#d2cfb0
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#34405e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#654a34
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen