HEX CODES
#516979
#062940
#55646E
#0C2230
#F6F6F6
#F2F2F2
#BBBBBB
#9D9D9D
#4D8B84
#01594F
#537874
#537874
#65D29F
#65D29F
#61A485
#1E7D51
#F4E3A2
#F0D87B
#B9AF87
#9B8D54

Original image from John-Mark Kuznietsov

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