R: Graphical User Interface to Pick Colors in HCL Space

hcl_color_picker {colorspace} | R Documentation

## Graphical User Interface to Pick Colors in HCL Space

### Description

The app visualizes colors either along the hue-chroma plane for a given luminance value or along the luminance-chroma plane for a given hue. Colors can be entered by specifying the hue (H), chroma (C), and luminance (L) values via sliders, by entering an RGB hex code, or by clicking on a color in the hue-chroma or luminance-chroma plane. It is also possible to select individual colors and add them to a palette for comparison and future reference.

### Usage

    hcl_color_picker(shiny.trace = FALSE)

    choose_color(shiny.trace = FALSE)

### Arguments

`shiny.trace` | logical: used for debugging the shiny interface.

### Details

`choose_color` is a convenience alias for `hcl_color_picker` to go along with `choose_palette`. Another alias is `hclcolorpicker`.

### Value

`hclcolorpicker` invisibly returns a vector of colors choosen. If no colors have been selected `NULL` will be returned.

### Author(s)

Claus O. Wilke, Reto Stauffer, Achim Zeileis

### References

Zeileis A, Fisher JC, Hornik K, Ihaka R, McWhite CD, Murrell P, Stauffer R, Wilke CO (2020). “colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes.” Journal of Statistical Software, 96(1), 1–49. doi: 10.18637/jss.v096.i01

### See Also

`choose_palette`

### Examples

    ## Not run:
    hcl_color_picker()

    ## End(Not run)

[Package colorspace version 2.0-3 Index]