HEX CODES
#4E5B61
#02151D
#535B5F
#0A151A
#4F7A9C
#003F71
#556F84
#092F4E
#9BFFA8
#71FF83
#83C08B
#4EA559
#4DD48D
#00C25D
#53A57A
#097F41
#4DB6A1
#009779
#539386
#096553

Original image from Paul Morris

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