Perceptually Uniform Palettes for Spectral Imagery — hsa

Returns colour ramps suitable for scientific imagery. The palettes other than "turbo" are perceptually uniform and monotonic in lightness, so ordering survives greyscale printing and remains legible to colourblind readers. "turbo" is retained with a warning for compatibility.

Usage

hsa_palette(
  name = c("viridis", "magma", "inferno", "plasma", "cividis", "mako", "rocket", "turbo"),
  n = 256L,
  direction = 1
)

Arguments

name: Palette name. One of "viridis", "magma", "inferno", "plasma", "cividis", "mako", "rocket", "turbo".
n: Number of colours. Default 256.
direction: 1 (default) or -1 to reverse.

Value

A character vector of hex colours.

Examples

head(hsa_palette("magma", n = 5))
#> [1] "#000004FF" "#51127CFF" "#B63679FF" "#FB8861FF" "#FCFDBFFF"