I spent an embarassingly long time trying to come up with the color scheme for this website. I swear I didn’t realize that it is the default colors for a 2 group graph in ggplot2

library(ggplot2)
#> Warning: package 'ggplot2' was built under R version 3.3.2
ggplot(mtcars, aes(x = mpg, y = wt, group = am, color = factor(am))) +
  geom_point() + 
  geom_smooth()
#> `geom_smooth()` using method = 'loess'