R: Convert a Color or a RGB-color Into Hex String

ColToHex {DescTools} | R Documentation

## Convert a Color or a RGB-color Into Hex String

### Description

Convert a color given by name, by its palette index or by rgb-values into a string of the form "#rrggbb" or "#rrggbbaa".

### Usage

    ColToHex(col, alpha = 1)

### Arguments

`col` | vector of any of either a color name (an element of colors()), or an integer i meaning palette()[i]. Non-string values are coerced to integer.
`alpha` | the alpha value to be used. This can be any value from 0 (fully transparent) to 1 (opaque). Default is 1.

### Value

Returns the colorvalue in #rrggbb" or #rrggbbaa" format. (character)

### Author(s)

Andri Signorell <andri@signorell.net>

### See Also

HexToCol, ColToRgb, colors

### Examples

    ColToHex(c("lightblue", "salmon"))

    x <- ColToRgb("darkmagenta")
    x[2,] <- x[2,] + 155
    RgbToCol(x)

    RgbToHex(c(255,0,0))

[Package DescTools version 0.99.36 Index]