Package - ggthemes
Novelty - Yes
Type - qualitative

ggthemes - hc_bg

Github

jrnold/ggthemes

CRAN

ggthemes

Use with paletteer package:

library(paletteer)
paletteer_d("ggthemes::hc_bg")

Use raw:

c("#D5E4EBFF", "#C3D6DFFF", "#ED111AFF", "#EBEBEBFF", "#C9C9C9FF")