HEX CODES
#515356
#07090D
#565658
#0D0E10
#BEDCEA
#A1CDE2
#98ABB4
#6B8693
#B2DE4D
#91D001
#90AB53
#618809
#F0E24D
#EAD601
#B7AE53
#988B09
#D84D56
#C8010E
#A85358
#830911

Original image from Alessandro Ranica

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