ltc_cvd: Preview a Palette under Colour Vision Deficiency (CVD)

In ltc: Collection of Artistic and Nature-Inspired Color Palettes

Preview a Palette under Colour Vision Deficiency (CVD)

Description

Simulates how an ltc palette appears to viewers with the three main types of colour vision deficiency (colour blindness) and shows the result as rows of swatches. Useful for checking whether a palette stays distinguishable for colour-blind readers.

The simulation uses colorspace: deuteranopia (green-weak, the most common), protanopia (red-weak) and tritanopia (blue-weak).

Usage

ltc_cvd(name, severity = 1, labels = TRUE)

Arguments

name	Character or unquoted palette name (e.g. dora or "dora"), or a character vector of hex colours.
severity	Numeric in ⁠[0, 1]⁠. Strength of the deficiency, where 1 is the full dichromatic simulation (the default) and lower values give milder anomalous-trichromacy simulations.
labels	Logical. If TRUE (default) the hex codes are printed on the swatches.

Value

A ggplot2 object: one row of swatches per vision type (Normal, Deuteranopia, Protanopia, Tritanopia).

Examples

ltc_cvd(dora)
ltc_cvd("expevo", severity = 0.6)

ltc documentation built on July 19, 2026, 9:07 a.m.