It may be nice to have the exact same color as the real kit but now shirts don't match with the shorts and socks. I think the 64 color technic should only be used for the third, fourth and fifth color. The first two colors should be like in fifa 99, red and grey.

If im right
you can made 8 shorts with own palette
If you select dark versions of a colour it will match the jersey.
For example Liverpool fc
Dark red shorts will be perfect

Do any of you know where ea have placed their fifa palette

Check out the pkshared.sfh file in the jersey directory! I'm planning a big Belgian Update and I'm also planning in updating that file so every-pants matches (or almost every)