Mixing Purple Paint for Vehicons

I didn't really like the foil, purple stickers on the shins of the TakaraTomy release of the AM Vehicon, so I want to paint them with a purple that matches the paint on his chest and the parts that were cast in purple plastic.

I've been experimenting with several colors of Citadel paints in varying amounts and combinations, but I haven't been able to come up with anything that matches that specific shade of purple.

Does anyone have any suggestions, because I'm stumped and I'd really appreciate the help.

You kind of need to keep doing custom color matches in order to get it completely identical to the stock purple. You'll just have to keep testing it until you get it right. Test it on a junker Transformer to see how it matches up once dried.

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If I remember someone in the Radicons did a custom, and I think he used model masters grape pearl... It looke like it matched, but I think it was on a PRID Vehicon...

Edit: Here is the link that I was talking about...

Vehicon Show Accurate-ish

I'm familiar with Cheets work.

That shade of purple he used isn't show accurate and doesn't match the shade of the purple that's painted on the figures.