Changing the colour of your light source may help, but…
if you camera has an auto white balance, it may compensate to the change, and it’ll look the same,
if you camera has a manual white balance, you can keep the lights of the same colour, but make a white balance off the cold card, or off a sample of warm, light yellowish/reddish paper or fabric.
Right setting of the lights is more important, use more back lights and less light on the front side to create silhouettes.
