It's official: Rainbow-colored hair is the trend du jour. If you love those crazy-pretty colors but can't bring yourself to take the dye dare just yet, swipe this season's hottest hair colors on your nails first.

Rose Gold for the Win
In case you haven't been paying attention, rose gold hair is basically the new blonde. To channel the pink, peach and gold highlights perfected by celebs like Sienna Miller, try Sally Hansen Complete Salon Manicure in Almost Almond with a coat of Golden Rust on top.

Lovely in Lavender
Kelly Osbourne was the first celebrity style-setter to sport lavender locks and the rest of the world has finally caught up. Sally Hansen Complete Salon Manicure in I Lilac You replicates the ethereal hue.

Dip Dye Mermaid Nails
If you can't pick just one color, why not include all of your favorites? Inspired by the likes of Anna Paquin's blue, green and purple mermaid 'do, use Sally Hansen Complete Salon Manicure in Grape Gatsby, Water Color and Batbano Blue to replicate the colorful ombré style on your nails.

Start by applying two coats of Water Color. To speed drying time, add a drop of Sally Hansen Complete Salon Manicure Dry + Go Drops. Apply one stripe of each polish to a makeup sponge, starting with Water Color at the bottom, Batbano Blue in the middle and Grape Gastby at the top. Make sure your stripes are slightly overlapping so the color transfers onto your nail without gaps. Lightly sponge the stripes onto your nail for an ombré effect, dabbing several times to blend the colors seamlessly. Use an acrylic nail brush dipped in acetone to clean the polish off of your finger. Finish with a top coat.