Hi guys, I wonder has anyone any recommendations for purple food colouring for mixing into cake batter?

I've tried normal liquid (mixing red ad blue) and sugarflair purple gel and both just give a sad looking grey/lilac colour. 

All my other colours are nice and bright on my rainbow cakes it's just the purple that's disappointing!

stir in some blueberries?

but i'm not sure why the purple colors don't work but blueberry will

Haha thanks guys will give that a go on my next one :)

Rainbow cake is my signature cake so would really like it to be perfect :)

I love the purple in this rainbow cake: https://www.facebook.com/photo.php?fbid=420062771363757&set=a.198946576808712.45975.196864310350272&type=3&theater

Check the comments, she posted what colors she's used...

AThank you,I must check is that brand stocked in ireland :)

AI mix sugarflairs deep purple with their fuchsia and I get a lovely purple colour. Not sure if I still have a picture or not. I'll have a look.

A[IMG]http://cakecentral.com/content/type/61/id/3220749/width/200/height/400[/IMG]

Not the best picture but it's all I have. I was doing it for college so it's just a quick shot in class. But you came play with the level of purple with how you mix the two colours together.

Oh that's a lovely colour, I may try that next time and see can i get similar results.

i just wanted to say that i would recommend making cupcakes with the different types of coloring in order to test this out to get it to your liking--