Young male budgie's ceres are pink
Young male budgies have pinkish or lavender ceres, while the ceres of a young female budgie are often light blue.
Now, it gets more complicated... the ceres change while your budgie is growing up.
Green and blue male budgies have blue ceres. White, yellow and multicoloured male budgies often keep the pink-coloured ceres from their youth.
All female budgies from all colours get brown ceres. No exception there :)