Exploring Van Gogh Palettes in R"

In vangogh: Vincent Van Gogh Colour Palette Generator

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1. Display a single palette

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Visualise a discrete palette

vangogh::viz_palette("StarryNight")

Visualise a colorblind-safe palette (\dontrun{} optional)

\dontrun{

vangogh::viz_palette("Cypresses", colorblind = TRUE)

}

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2. Generate colorblind-safe versions

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Standard palette

pal_orig <- vangogh::safe_vangogh_palette("StarryNight") pal_orig

Colorblind-safe version (\dontrun{} optional)

\dontrun{

pal_safe <- vangogh::safe_vangogh_palette("StarryNight", colorblind = TRUE) pal_safe

}

Compare original vs colorblind palettes (\dontrun{} optional)

\dontrun{

vangogh::compare_palettes(c("StarryNight", "Cypresses"), colorblind = TRUE)

}

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3. Discrete vs Continuous palettes

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Discrete palettes: fixed number of colors, best for categorical data

pal_discrete <- vangogh::safe_vangogh_palette("SunflowersMunich", type = "discrete") pal_discrete

Continuous palettes: interpolate to n colors, ideal for gradients

pal_cont <- vangogh::safe_vangogh_palette("CafeTerrace", type = "continuous", n = 12) vangogh::viz_palette("CafeTerrace", type = "continuous", n = 12)

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4. Working with ggplot2

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4a. Discrete color scale

ggplot2::ggplot(mtcars, ggplot2::aes(mpg, wt, color = factor(cyl))) + ggplot2::geom_point(size = 3) + vangogh::scale_color_vangogh("StarryNight") + vangogh::theme_vangogh(base_size = 14) + ggplot2::labs(title = "Discrete Van Gogh Color Scale Example")

4b. Continuous color scale

ggplot2::ggplot(mtcars, ggplot2::aes(mpg, wt, color = hp)) + ggplot2::geom_point(size = 3) + vangogh::scale_color_vangogh("Cypresses", discrete = FALSE) + vangogh::theme_vangogh() + ggplot2::labs(title = "Continuous Van Gogh Color Scale Example")

4c. Fill scales

ggplot2::ggplot(diamonds, ggplot2::aes(cut, fill = clarity)) + ggplot2::geom_bar() + vangogh::scale_fill_vangogh("CafeDeNuit") + vangogh::theme_vangogh() + ggplot2::labs(title = "Discrete Fill Example")

Continuous fill example

ggplot2::ggplot(diamonds, ggplot2::aes(carat, price, fill = price)) + ggplot2::geom_tile() + vangogh::scale_fill_vangogh("StarryRhone", discrete = FALSE) + vangogh::theme_vangogh() + ggplot2::labs(title = "Continuous Fill Example")

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5. Inspect all palettes programmatically

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Get tidy data frame of all palettes

all_palettes <- vangogh::vangogh_colors() head(all_palettes)

With colorblind adjustment (\dontrun{} optional)

\dontrun{

all_palettes_safe <- vangogh::vangogh_colors(colorblind = TRUE) head(all_palettes_safe)

}

List all palette names

names(vangogh::vangogh_palettes)

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6. Multi-palette comparison visualisation

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Compare multiple palettes side-by-side (\dontrun{} optional)

\dontrun{

vangogh::compare_palettes(c("StarryNight", "SunflowersMunich", "CafeTerrace"))

}

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7. Additional functions

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View detailed palette info

vangogh::vangogh_palette_info()

Future features: suggested palettes

\dontrun{

vangogh::vangogh_suggest(7, colorblind = TRUE)

}

Future features: export palettes

\dontrun{

vangogh::vangogh_export("palettes.json", colorblind = TRUE)

vangogh::vangogh_export("palettes.csv")

}

vangogh documentation built on Aug. 22, 2025, 1:10 a.m.