It is normal for a baby's skin color to change over time, but if you notice that your son's skin color is becoming dull, there are a few things you can do to help maintain its brightness. Firstly, ensure that your baby is getting enough hydration by offering frequent breast milk or formula feeds. Keeping the skin moisturized with a gentle baby lotion or oil can also help prevent dryness and maintain its natural glow. Additionally, protect your baby's delicate skin from excessive sun exposure by using sunscreen and dressing them in lightweight, breathable clothing. If you have any concerns about your son's skin color or overall health, it is always best to consult with a pediatrician for further guidance and reassurance.