White, specifically white cotton fabric, is the first choice for new-borns (irrespective of their gender) and this trend stands good across countries and races. Milky white is the chosen one not just for clothes, but the linen, diapers, towels are all picked keeping in mind the pure colour.
The reason for this is a bundle of convenience, comfort level and climate.
Once the excitement over the baby starts wearing off, you slowly wake up to the real infant world filled with pee and poop. Some new moms even complain that these seem to be the only things the baby is doing, when he or she is not crying for food. And this needs your immediate intervention as there are chances of baby suffering from rashes or allergies, if they stay wet for long. Here's where white works the best. You will certainly notice when a white diaper is soiled. You will then immediately change the clothing and lessen the discomfort for the baby.
With the extra load of laundry to wash every day, white fabric makes it far more easier to ensure that clothes are thoroughly cleaned after washing.
You need to be extra cautious with kids’ clothing and make certain that no dirt is sticking on to the fabric. Say in a custard yellow cloth, you may not be able to so easily spot when it is soiled or confirm that it is thoroughly cleaned.
Next let us look at the climate - hot, sultry weather does not suit the baby. And the babies would be highly uncomfortable, if they are made to wear dark or bright garments that are usually made from synthetic fabrics.
Babies predominantly need breathable fabric (like the cotton) that is gentle on their sensitive skin. And the white ones ensure that no extra heat is absorbed by the fabric - providing a pleasant time to the babies.