Source Crayola® CSS3 CSS4
#b4b6aa
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#647d88
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#708f84
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#4b6372
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey