Version:            (using KDE KDE 3.5.5)
Installed from:    Debian testing/unstable Packages
OS:                Linux

Xcolor used with option prologue use a special name for color but kdvi doesnt not understood. 
If this option is used dvi file has a line header=\jobname.xcp The file \jobname.xcp define the named color and looks like for x11names options and rgb colorspace:
%!
TeXDict begin
/XC@red{1 0 0}XCrgb
/XC@green{0 1 0}XCrgb
/XC@blue{0 0 1}XCrgb
/XC@orange{1 0.5 0}XCrgb
/XC@violet{0.5 0 0.5}XCrgb
/XC@purple{0.75 0 0.25}XCrgb
/XC@brown{0.75 0.5 0.25}XCrgb
/XC@pink{1 0.75 0.75}XCrgb
/XC@cyan{1 0 0 0}XCcmyk
/XC@magenta{0 1 0 0}XCcmyk
/XC@yellow{0 0 1 0}XCcmyk
/XC@olive{0 0 1 0.5}XCcmyk
/XC@black{0}XCgray
/XC@darkgray{0.25}XCgray
/XC@gray{0.5}XCgray
end
%%%%%%%% end file
XCcmy for CMY colorspace (3 components)
XCcmyk for CMYK colorspace (4 components)
XCgray for grayscale(1 components)
XCrgb for rgb color(3 components)
XChsb for hsb space(3 components)

Color are defined in dvi by the usual "color push namedcolor"
I believe it is possible to support this xcolor option in kdvi

Regards bastien