Source Crayola® CSS3 CSS4
#6f4f30
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#9a7750
 
#a5694f
sepia
#a0522d
sienna
#a0522d
sienna
#857f7e
 
#757575
sonic silver
#808080
grey
#808080
grey