How to use CMYK colors as font color?

[Sun, Tiffany (Tong)]

Title: How to use CMYK colors as font color?

Hi,
I need to use a font with color in CMYK color space, is there a way to tell FOP that I'm using CMYK color as font color? And how to define CMYK color "0 0 0 1"?

Currently I'm using
<fo:block font-size="{$textSize}"
font-family="{text/font-family}" color="0001">
But the generated PS file has RGB color space instead of CMYK.

Thanks.

Tiffany