Can anyone help me with how to make this color with buttercream?  What colors should I mix with the purple to get this deep color?

My base will be wilton violet

I would think a true pink added to violet.  But, ... but,..... is that violet blue or more on the Pinkish/purple side?  W/o actually seeing your base it’s so hard to say 

Ok ill try the pink... and see what happens.  I'm so not good at difficult colors