HEX CODES
#ECEAE2
#E5E1D6
#B5B2AE
#95928B
#7D805F
#434818
#70735E
#313517
#D3B066
#C18F25
#A59062
#7F601F
#7C7269
#443629
#6F6A64
#322A22
#62615C
#1F1D16
#5F5F5C
#1B1A16

Original image from Jack Hamilton

Five colors with tint, shade, and tone of each for added inspiration. Includes HTML/HEX codes.