Source Crayola® CSS3 CSS4
#545047
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#a8a696
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#716d60
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#b4bec0
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver