Source Crayola® CSS3 CSS4
#6c4639
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#936658
 
#a5694f
sepia
#696969
dim grey
#696969
dimgrey
#433330
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey