It's unlikely you can accurately determine a baby's eye color at just one month old.
Babies are typically born with blue or grey eyes. This is because the melanin, the pigment responsible for eye color, hasn't fully developed yet.
As a baby grows, their eye color can change as melanin production increases. This process can take several months, even up to a year or two in some cases.
While it's tempting to try to guess your baby's eye color early on, it's best to be patient and wait for their true eye color to emerge naturally.