I'm always complaining about needing companies to make a nude lip stain - you hardly ever see one. Luckily Revlon introduced some additions to their Just Bitten lip stain + balm line and their are a few nudes in it!!! However, they're pricey a $9.94 each (for a drugstore product).
These lip stains are very pigmented, and this one called 'Instinct' is about 2-3 shades darker than my natural lip tone so it looks very natural and gives me super even coverage. They do last a very long time but dont be worried - they wont stain your lips forever, lol.