Package - jcolors
Novelty - Yes
Type - qualitative
jcolors - rainbow
CRAN
Not on CRAN
Use with paletteer package:
library(paletteer)
paletteer_d("jcolors::rainbow")
Use raw:
c("#D12600FF", "#DB6A00FF", "#B2FF2EFF", "#00AD00FF", "#9CCADEFF", "#005B94FF", "#1E2085FF", "#610052FF", "#953272FF")