Source Crayola® CSS3 CSS4
#676b64
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#4f4e4a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#8b8974
 
#9f8170
beaver
#808080
grey
#808080
grey