Package - PrettyCols
Novelty - No
Type - divergent

PrettyCols - RedBlues

Github

nrennie/PrettyCols

CRAN

PrettyCols

Use with paletteer package:

library(paletteer)
paletteer_d("PrettyCols::RedBlues")

Use raw:

c("#B53737FF", "#C66969FF", "#D79C9CFF", "#E8CFCFFF", "#F5F5F5FF", "#93C6E1FF", "#5F93ACFF", "#2E627AFF", "#00344AFF")