shading,washing white

i’m doing the interior wheel bays of my F-16 and though it won’t be heavily weathered ,i wanted to highlight the areas in the white wheelbays,what color goes best without bieng to dark or unrealistic?

I usually use raw sienna or umber on lighter paints. I would maybe try a watered down grey as well.

ANdy

that’s where i was heading after a few practice pieces ,i’m using heavily thinner burnt umber…for some reason it’s lighter in the tube than raw umber,i guess it burns lighter