Package - ggthemes
Novelty - Yes
Type - qualitative

ggthemes - excel_Slipstream

Github

jrnold/ggthemes

CRAN

ggthemes

Use with paletteer package:

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

Use raw:

c("#4E67C8FF", "#5ECCF3FF", "#A7EA52FF", "#5DCEAFFF", "#FF8021FF", "#F14124FF")