Source Crayola® CSS3 CSS4
#7a7872
 
#757575
sonic silver
#808080
grey
#808080
grey
#504e48
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#2e2c25
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey