| Title: | Collection of Artistic and Nature-Inspired Color Palettes |
| Version: | 0.3.0 |
| Description: | Offers a variety of color palettes inspired by art, nature, and personal inspirations. Each palette is accompanied by a unique backstory, enriching the understanding and significance of the colors. |
| License: | MIT + file LICENSE |
| Encoding: | UTF-8 |
| RoxygenNote: | 7.3.3 |
| URL: | https://github.com/loukesio/ltc-color-palettes |
| BugReports: | https://github.com/loukesio/ltc-color-palettes/issues |
| Imports: | grDevices, ggplot2, ggforce, dplyr, colorspace, crayon |
| Language: | en-US |
| Suggests: | spelling |
| NeedsCompilation: | no |
| Packaged: | 2026-01-11 22:50:03 UTC; theodosiou |
| Author: | Loukas Theodosiou 
[aut, cre],
Kristian Ullrich
[aut] |
| Maintainer: | Loukas Theodosiou <theodosiou@evolbio.mpg.de> |
| Repository: | CRAN |
| Date/Publication: | 2026-01-16 11:30:20 UTC |
Adjust Lightness of Palette Colors
Description
Darken or lighten an entire palette or specific colors within it. Uses the colorspace package for perceptually uniform adjustments.
Usage
adjust_ltc(palette_name, amount = 0, which = NULL)
Arguments
palette_name |
Character or unquoted name. Name of the ltc palette to adjust. |
amount |
Numeric. Amount to adjust lightness (-100 to 100). Negative values darken, positive values lighten. Default is 0 (no change). |
which |
Integer vector. Which colors to adjust (e.g., c(1, 3) for 1st and 3rd). If NULL (default), adjusts all colors. |
Value
A vector of adjusted hex color codes with class "ltc"
Examples
# Darken entire palette
adjust_ltc(alger, amount = -20)
# Lighten entire palette
adjust_ltc("maya", amount = 30)
# Darken only specific colors
adjust_ltc(remains, amount = -25, which = c(2, 4))
Plot a Colour Palette as a Bird
Description
Visualizes a selected colour palette in the form of a bird drawing. Requires at least 5 colors in the palette.
Usage
bird(chrom)
Arguments
chrom |
An ltc palette object |
Value
A ggplot2 object showing a bird drawing using the selected colours.
Examples
# Create a bird visualization
pal <- ltc(paloma)
bird(pal)
Create Custom Palette with Individual Color Adjustments
Description
Apply different lightness adjustments to each color in a palette.
Usage
custom_adjust_ltc(palette_name, adjustments)
Arguments
palette_name |
Character or unquoted name. Name of the ltc palette. |
adjustments |
Numeric vector. Lightness adjustments for each color (-100 to 100). Length must match the palette length. |
Value
A vector of adjusted hex color codes with class "ltc"
Examples
# Different adjustment for each color
custom_adjust_ltc(remains, c(-30, 0, 40, 0))
# Create gradient effect
custom_adjust_ltc("maya", c(-40, -20, 0, 20, 40))
Desaturate Palette Colors
Description
Reduce color saturation (make colors more gray).
Usage
desaturate_ltc(palette_name, amount = 0.5, which = NULL)
Arguments
palette_name |
Character or unquoted name. Name of the ltc palette. |
amount |
Numeric. Desaturation amount (0 to 1). 0 = no change, 1 = completely gray. |
which |
Integer vector. Which colors to desaturate. If NULL (default), affects all colors. |
Value
A vector of desaturated hex color codes with class "ltc"
Examples
# Desaturate entire palette
desaturate_ltc(luminaries, amount = 0.5)
# Desaturate only specific colors
desaturate_ltc("heatmap2", amount = 0.7, which = c(1, 2))
Information about the Colour Palettes
Description
This dataframe contains the backstory or inspiration behind each color palette.
Usage
info
Format
An object of class data.frame with 31 rows and 2 columns.
List of colour palettes
Description
A list containing predefined colour palettes with artistic backstories.
This function provides the desired colour palette by name. You can call it with or without quotes: ltc(paloma) or ltc("paloma")
Usage
palettes
ltc(name, n, type = c("discrete", "continuous"))
Arguments
name |
Character or unquoted name. The name of the desired palette. |
n |
Integer. The number of colors you want from the palette. If omitted, it uses all colors from the palette. |
type |
The type of palette. Either "discrete" or "continuous". |
Format
An object of class list of length 31.
Details
ltc: A Collection of Art-inspired Colour Palettes
This package provides a collection of color palettes inspired by art, nature, and personal preferences. Each palette has a backstory, providing context and meaning to the colors.
Value
A vector of hex color codes with class "ltc"
Examples
# Load a palette (with or without quotes)
ltc(paloma)
ltc("maya")
# Select first 3 colors
ltc(maya, n = 3)
# Generate continuous palette
ltc(remains, n = 10, type = "continuous")
Plot a Colour Palette
Description
Visualizes a selected colour palette as a bar of colours.
Usage
## S3 method for class 'ltc'
plot(x, ...)
Arguments
x |
An ltc palette object |
... |
Additional arguments (currently unused). |
Value
A ggplot2 object showing the selected colours.
Examples
# Create and plot a palette
pal <- ltc(paloma)
plot(pal)
Print Method for ltc Objects
Description
Custom print method that displays the palette name followed by hex color codes with actual colors visible in the console.
Usage
## S3 method for class 'ltc'
print(x, ...)
Arguments
x |
An ltc palette object |
... |
Additional arguments (currently unused) |
Value
Invisibly returns the palette object