Source Crayola® CSS3 CSS4
#595b66
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#70799b
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#7c7875
 
#757575
sonic silver
#808080
grey
#808080
grey
#383940
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey