What color should the base of the feathers on Conures be? Is yellow a concern?

[Scarlet&Annie]

I'm not sure if maybe I'm just now noticing this or what but I just want to be sure everything is okay.
My little Pineapple conure's feathers are a bit yellowish at the base like by the skin.
Is this something to be concerned about or is she fine?

Thank you!

 

[Mizzely]

Depends on the bird, and their mutation/genetics Do you have photos of what you are concerned with?

 

[Scarlet&Annie]

Depends on the bird, and their mutation/genetics Do you have photos of what you are concerned with?

Hi! Little hard to get a photo but I'll try to get one in a bit!