Color palette generators

Generate vectors of hex color codes from the four palettes available in text2map.theme. Each palette is designed for smooth gradients and colorblind accessibility. These functions are useful for base R plots, manual color specifications, or any context where a vector of colors is needed.

Usage

solaris_pal(n = 6)

viridis_pal(n = 6)

grayscale_pal(n = 6)

inferno_pal(n = 6)

Arguments

n

Integer. Number of colors to return (default 6).

Value

A character vector of n hex color codes.

Details

viridis_pal

Perceptually uniform (viridis option D). Purple to yellow gradient.

inferno_pal

Perceptually uniform (viridis option B). Dark purple to yellow gradient.

grayscale_pal

Black-to-light-grey gradient. Best for print publications.

solaris_pal

Custom purple-to-gold gradient via Lab-space interpolation. Pairs with theme_solaris.

The global palette used by ggplot2 scales can be set via set_theme(palette = ...).

See also

set_theme, solaris_colors, scale_fill_solaris_c

Examples

solaris_pal(5)
#> [1] "#2A0132" "#215AA9" "#009392" "#72BC5A" "#FFD700"
viridis_pal(5)
#> function (n) 
#> {
#>     viridisLite::viridis(n, alpha, begin, end, direction, option)
#> }
#> <bytecode: 0x5902b4c68b18>
#> <environment: 0x5902b6ce7cb0>
#> attr(,"class")
#> [1] "pal_discrete" "scales_pal"   "function"    
#> attr(,"type")
#> [1] "colour"
#> attr(,"nlevels")
#> [1] 255
inferno_pal(5)
#> [1] "#000004FF" "#56106EFF" "#BB3754FF" "#F98C0AFF" "#FCFFA4FF"
grayscale_pal(5)
#> [1] "#000000" "#6D6D6D" "#959595" "#B3B3B3" "#CCCCCC"