Hi there and
to the forums!
She's a beautiful girl
Female budgies start off with pale blue or whitish ceres which turn brown when they're in breeding condition. This is totally normal and you have nothing to worry about!
As you're new to the forums, be sure to read through the forum's many Budgie Articles and "stickies" (threads "stuck" to the top of each subform for easy reference) to ensure you're up to date on all the best practices for budgie care.
If you have any questions after reading through everything, be sure to ask!
We look forward to seeing you and your little budgie around the forums!