Source Crayola® CSS3 CSS4
#7d766e
 
#757575
sonic silver
#808080
grey
#808080
grey
#32302b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#55524b
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen