Source Crayola® CSS3 CSS4
#5a4a2d
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#59514c
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#7c7874
 
#757575
sonic silver
#808080
grey
#808080
grey