Package - trekcolors
Novelty - Yes
Type - qualitative

trekcolors - yellow_alert

Github

leonawicz/trekcolors

CRAN

trekcolors

Use with paletteer package:

library(paletteer)
paletteer_d("trekcolors::yellow_alert")

Use raw:

c("#674305FF", "#986509FF", "#CD870EFF", "#FFA90EFF", "#FFDA67FF", "#4D4D4DFF")