You can always use this 3rd party online program.
tViewer
and this software made by avwave (but this is old and obsolete. might not be working anymore)
3D Full Body Texture Viewer Program

No, is there a place where you can like,download the colors?

Maybe you can try to copy item.dat in someone custom , is that what ye meant ?

You can't download the colors from what I know, just go look at them threw the forums its as easy as that.

You could always try them on by opening ToriBash & clicking "Torishop"
From there - select your colors

You can't download "colors". you must buy them in the torishop whit your tc if you want to customizate and let others to see your "colors" in multiplayer.

There are many kind of colorous Items. suck as Relax colors, hold colors, grip colors, DQ colours... etc.

Or if you want to use toribash colors to make your own texture to fit toribash palette, you can try the link that Kzero07 sent.