Source Crayola® CSS3 CSS4
#949c96
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#516865
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#6e8481
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey