Collinite is not pure carnauba paste, it's synthetic with some proportion of carnauba and it is rated as best wax for white cars.
https://www.theartofcleanliness.com/automotive/best-wax-for-white-cars/
Check with another source.
https://autofella.com/best-car-wax-for-white-cars/
Another source: http://www.performancemotorcare.com/blog/top-8-car-polish-and-wax-for-white-silver-and-light-coloured-cars/
I do not know from where this thing has propped up that Collinite makes white paint pale. It is not true at all.
Collinite 476 was recommended by @DynamicallyStatic for my medium silver Altis 1.6
I used the same on my pre Facelift Super White Grande and when it was finishing, I asked Ahmad Yar bhai (of Luxe Auto Spa) to send me 476s. It was out of stock and that time and he recommended 845.
Also all these Carnauba waxes are recommended for white colours.