Observable 10 color scales

See pal_observable() for details.

scale_color_observable(palette = c("observable10"), alpha = 1, ...)

scale_colour_observable(palette = c("observable10"), alpha = 1, ...)

scale_fill_observable(palette = c("observable10"), alpha = 1, ...)

Arguments

palette

Palette type. Currently there is one available option: "observable10" (10-color palette).

alpha

Transparency level, a real number in (0, 1]. See alpha in grDevices::rgb() for details.

...

Additional parameters for ggplot2::discrete_scale().

References

Pettiross J (2023). "Crafting data colors and staying on brand." Observable blog. https://observablehq.com/blog/crafting-data-colors

Author

Nan Xiao | me@nanx.me | https://nanx.me

Examples

library("ggplot2")
data("diamonds")

ggplot(
  subset(diamonds, carat >= 2.2),
  aes(x = table, y = price, colour = cut)
) +
  geom_point(alpha = 0.7) +
  geom_smooth(method = "loess", alpha = 0.1, size = 1, span = 1) +
  theme_bw() +
  scale_color_observable()
#> `geom_smooth()` using formula = 'y ~ x'


ggplot(
  subset(diamonds, carat > 2.2 & depth > 55 & depth < 70),
  aes(x = depth, fill = cut)
) +
  geom_histogram(colour = "black", binwidth = 1, position = "dodge") +
  theme_bw() +
  scale_fill_observable()