Package - ggthemes
Novelty - Yes
Type - qualitative

ggthemes - excel_Madison

Github

jrnold/ggthemes

CRAN

ggthemes

Use with paletteer package:

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

Use raw:

c("#A1D68BFF", "#5EC795FF", "#4DADCFFF", "#CDB756FF", "#E29C36FF", "#8EC0C1FF")