R: RGB Color Specification

rgb {base} | R Documentation

## RGB Color Specification

### Description

This function creates ``colors'' corresponding to the given intensities (between 0 and 1) of the red, green and blue primaries. The names argument may be used to provide names for the colors.

The values returned by `rgb` can be used with a `col=` specification in graphics functions or in `par`.

### Usage

    rgb(red, green, blue, names=NULL)

### Arguments

`red, blue, green` | vector in [0, 1].
`names` | character. The names for the resulting vector.

### See Also

`col2rgb` the ``inverse'' for translating R colors to RGB vectors.
`rainbow`, `hsv`, `gray`.

### Examples

    rgb(0,1,0)
    u01 <- seq(0,1, length=11); all(rgb(u01,u01,u01) == gray(u01))
    reds <- rgb((0:15)/15, g=0,b=0, names=paste("red",0:15,sep="."))
    reds

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