Sexy, warm, and versatile, red and black can turn any design into the perfect moody manicure. Browse 17 of our favorite combinations, here.

Choose your favorite bright red polish, then swipe on a matte top coat (like this pick from OPI, $11), and use self-adhesive heart decals to shape out the heart. Grab this set for $6 on Amazon.

Croc has released the Classic Valentine’s Day Croc Clog. With a bright red base, the fun Valentine Day-inspired print graphic provides extra style with a heart lollipop design in pinks and red.