HEX CODES
#8B9D8D
#59735D
#78847A
#3F4F41
#95AF7A
#668C3F
#808F6F
#475E2F
#C5D3B9
#ADBF9B
#9CA494
#727D67
#F2F5EC
#EDF2E4
#B7BAB4
#999D94
#C0BBB2
#A69F92
#999691
#6E6A62

Original image from Nathan Fertig

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