As the leaves start to change, we swap out our sandals for boots, breezy dresses for cozy sweaters, and tinted balms for the perfect red lipstick. With so many options available, finding your signature shade can be a tricky task. Luckily, there's an easy way to find your right shade of red: knowing your skin tone. Start by looking at your veins. If they're blue, your undertone is cool; if they're green, you have a warm undertone. Similarly, silver jewelry looks best on cool undertones, while gold jewelry complements warm undertones. Continue scrolling to find your skin's signature shade from e.l.f. Cosmetics' SRSLY Satin Lipstick collection and welcome the new season with a single swipe.