title: CMY colour function in R
body: <p>Is there a <a href="http://en.wikipedia.org/wiki/CMYK_color_model" rel="noreferrer">CMY colour</a> function in any R package equivalent to <code>rgb()</code>?  There seems to be nothing in {base} or e.g. {colourSpace}.  I have a custom function which I can post here, but a native would be preferable.</p>