Source Crayola® CSS3 CSS4
#5a4d31
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#adaa9e
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#33291a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey