Package - RColorBrewer
Novelty - No
Type - sequential

RColorBrewer - GnBu

Github

Not on Github

CRAN

RColorBrewer

Use with paletteer package:

library(paletteer)
paletteer_d("RColorBrewer::GnBu")

Use raw:

c("#F7FCF0FF", "#E0F3DBFF", "#CCEBC5FF", "#A8DDB5FF", "#7BCCC4FF", "#4EB3D3FF", "#2B8CBEFF", "#0868ACFF", "#084081FF")