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Vital Package Color Palette

Source: R/plot_vital_functions.R
vital_colors.Rd

Returns color palettes for vitalBayes plots. The default palette is derived directly from the package hex sticker's retro-wave/synthwave aesthetic. Colorblind-friendly alternatives are provided based on established research (Okabe-Ito, viridis, and Paul Tol's schemes).

Usage

vital_colors(
  n = 5,
  palette = c("default", "sex", "gradient", "sunset", "okabe_ito", "viridis",
    "tol_bright", "sex_cb")
)

Arguments

n

Integer. Number of colors to return. Default returns all available colors in the selected palette.

palette

Character. Which palette to use:

"default"

Full retro-wave palette from logo (5 colors)

"sex"

Female (magenta) / Male (cyan) for two-sex models

"gradient"

Smooth gradient from pink to cyan (6 colors)

"sunset"

Warm sunset tones from the logo's sun element

"okabe_ito"

Colorblind-safe Okabe-Ito palette (8 colors)

"viridis"

Colorblind-safe viridis-inspired (5 colors)

"tol_bright"

Paul Tol's colorblind-safe bright scheme (7 colors)

"sex_cb"

Colorblind-safe sex palette (orange/blue)

Value

Character vector of hex color codes.

Colorblind Accessibility

The "okabe_ito", "viridis", "tol_bright", and "sex_cb" palettes are designed to be distinguishable by individuals with the most common forms of color vision deficiency (deuteranopia, protanopia, tritanopia).

For two-sex models in publications requiring accessibility, use "sex_cb" which employs orange (female) and blue (male) - the most robust color combination for all forms of color blindness.

References

Okabe M, Ito K (2008). "Color Universal Design (CUD): How to make figures and presentations that are friendly to Colorblind people." https://jfly.uni-koeln.de/color/

Tol P (2021). "Colour Schemes." SRON Technical Note. https://personal.sron.nl/~pault/

Examples

# Default vitalBayes palette
vital_colors()
#> [1] "#E930A7" "#00CFFF" "#7B2D8E" "#FF6B35" "#F72585"

# Two-sex models
vital_colors(2, "sex")       # Default pink/cyan
#> [1] "#E930A7" "#00CFFF"
vital_colors(2, "sex_cb")    # Colorblind-safe orange/blue
#> [1] "#E69F00" "#0072B2"

# Colorblind-safe palettes for multi-group comparisons
vital_colors(4, "okabe_ito")
#> [1] "#E69F00" "#56B4E9" "#009E73" "#F0E442"
vital_colors(5, "viridis")
#> [1] "#440154" "#3B528B" "#21918C" "#5DC863" "#FDE725"

# Preview palettes
barplot(rep(1, 5), col = vital_colors(5), border = NA, main = "Default")

barplot(rep(1, 8), col = vital_colors(8, "okabe_ito"), border = NA, main = "Okabe-Ito")