Most mums aren't aware of the colour of their breastmilk unless they express. If your breastmilk looks different from how you expected it would, you might be concerned.
The colour of breastmilk varies. Colostrum is typically yellowish and mature breastmilk is typically bluish-white. However, there is a wide range of normal.
Sometimes your breastmilk may change colour because of your diet, often from food dyes in foods or drinks.