Source Crayola® CSS3 CSS4
#b0b6c7
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver
#737c8e
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#585861
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey