You know, the Electric blue on the Australian MS3's that everyone is in love with is just the same blue you can get on regular ol' Mazda3's... so if you really want that colour, you can just use the 07/08 Mazda3 Electric Blue. I can get you the colour code for THAT, if you want.
To those that suggest yellow. Don't get me wrong, I like yellow. Yellow cars always grab my attention. But I have a feeling yellow would be a color that I would get tired of dealing with everyday.