A no-brainer way to create a mani-pedi color combo that's always on-trend? Pair polishes with a similar opacity or tone, like sheers or pastels. The M.A.C. nail color Mischievous on your toes adds a festive touch to American Apparel nail color in Summer Peach.

"Mint and peach are both ideal summer colors and make for a good pair," says Soon. "If you'd prefer not to use bright, 'pop' colors, yet you still want to try colors, a pastel-on-pastel match is the way to go."

For an edgier take on the traditional nautical look, Thornberry suggests using a lighter, metallic nail color like Hoopla Summer Solstice for your hands and a deep navy like Legal Eagles for your toes.

"The icy silver color keeps the look polished and clean," says Thornberry. "When paired with a dark navy tone on your toes, the look is more fashion-forward, but still conservative and cool."

Prefer a more natural look? That doesn't mean you can't have some fun with color. To avoid having to change your polish colors as you go from the beach to the boardroom, try wearing a neutral color like Butter London Yummy Mummy on your nails and a more vibrant shade like Estée Lauder Tumultuous Pink on toes.

"The pink on the toes is the wild card of the pair ... while the nude brings you back to fashion reality," says Soon.

Feeling festive? A splashy turquoise color like RGB nail color in Peacock on your toes and Tom Ford nail color in Coral Beach for your nails make a great pair.

Soon says, "[These are] nicely contrasting, and bright yet subtle. These are interesting shades to usher in the warm weather."

Another contemporary yet unexpected color palette to try: Chanel Le Vernis Nail Colour in Holiday on your toes and Porcelaine by Dior Vernis on your nails.

"This modern combination is appropriately contrasting and employs quintessentially summery colors," says Soon.