Package - unikn
Novelty - Yes
Type - sequential

unikn - pal_karpfenblau

Github

hneth/unikn

CRAN

unikn

Use with paletteer package:

library(paletteer)
paletteer_d("unikn::pal_karpfenblau")

Use raw:

c("#B4BCD6FF", "#8290BBFF", "#586BA4FF", "#3E5496FF", "#324376FF")