Adding supplemental light for color balance question

I got a question. My plants are about 5 weeks into flower under a 430w hps. does it make sense to add bulbs that are higher on the color spectrum like a 5000k light just to add a little variety and balance or would that screw up the overall color temp?

Basically does my plant want an overall color temp to be under 2500k or can it bennafit from a variety of bulbs that would have different color temps.

Again this is to supplement my 430w HPS

shameless bump...