Mini rex show color question

[Teenbunz]

Is tri a recognized color in ARBA for show I'm getting 3 pedigreed mini rexes who come from show quality lines 1 is broken blue female 1 castor male and 1 tri female the lady is a registered ARBA breeder and they come from good lines no vm or vc in the lines also I need good recommendation on tatto pens for tattooing there ears

 

[Jackrabbit]

All 3 can be shown