how to get that purple/ red color

[Coleus]

I am using 3x 14K Ushio MH and 4xATI Blue Plus T5 bulbs, but I don't get the pink and purple color of my coral like others do. For example


Green monti with purple rim: I don't see the purple rim :-(

Pink monti cap : I see dark red

What bulbs I should change to get these colors?

I also dose Coral Snow, B-Balance, K-Balance, amino acid

Please help. Thanks