(keitai-l) Grayscale Colors

Hi Everyone,

Does anyone know what the #RRGGBB values are for the
phones that can handle grayscale graphics?  Or do the
different models have entirely different settings.  I have a
bad feeling it is probably the later.

I can find info on the color palette, but not on the gray-
scale palette.  A URL with the answers would be great
too.

Thanks,
Jon