A couple of photos of Saturn ...but no colour ?

Hi,
Here are a couple of photos of Saturn, the first was taken with a 120mm refractor
f 8 with 3x barlow on 15 April, and the second with 100 ED refractor f9 and 3x barlow on 22 April.
Camera Toucam webcam 840k + IR filter
AVI 750 @ 5 fps
500 stacked in registax
Layer 1= 20
Layer 2= 40
Layer 3 =10
I did nothing else in registax partly because I’m not too sure.
Although I happy enough with the results I can’t seem to get any colour into them ,
I played around with Hue, Saturation and Contrast to no avail.
Any suggestions that might help me drag out a little more detail.
Tony