Source Crayola® CSS3 CSS4
#57564c
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#a1a195
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#848173
 
#757575
sonic silver
#808080
grey
#808080
grey
#3a3832
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey