Source Crayola® CSS3 CSS4
#666476
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#a1a7bd
 
#a2a2d0
blue bell
#a9a9a9
dark gray
#a9a9a9
darkgrey
#838294
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#393946
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey