Source Crayola® CSS3 CSS4
#372e27
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a5a09b
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#554c41
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#837d77
 
#757575
sonic silver
#808080
grey
#808080
grey