Hi Nik
First of all do you know how many years it has been since I have seen a V in my stomach – well to many lol
I am like a mini budda.
As for colours red and black are popular and stand well against any skin pigment.
I would advise against green and orange – green is a difficult colour to maintain and can fade rapidly. It is also the hardest colour to shift in tattoo removal.
Red and yellow would also work well but again be careful of the pigments used in yellow and check for a reputable brand.
Good luck
Take Care
Matthew