Source Crayola® CSS3 CSS4
#5c6a3a
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#414828
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#b6b4a1
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey