Source Crayola® CSS3 CSS4
#a1a0ab
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#6f7377
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#56585e
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey