HEX CODES
#4D4D56
#00000D
#535358
#090910
#7D71A0
#433276
#706986
#312751
#539AA2
#096F7B
#568287
#0E4C54
#84EEB4
#4FE794
#74B592
#399663
#C6F6C0
#AEF3A5
#9DBA99
#739D6D

Original image from Vincent Guth

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