The couple that styles together, stays together.

Since their days as high school sweethearts in the 1940s, Plumas Lake, Calif., couple Francis and RoseMary Klontz have been matching their outfits.

“Well, my mother got us matching shirts when we were in high school,” RoseMary tells CBS13. “I picked them out — and we’ve matched ever since.”

The pair, now both 87, met at junior high in Auburn, Wash.

“I thought she was the cutest little thing,” Francis says. “By the time we were seniors, we started going together.”

They tied the knot 68 years ago, at 19, and after nearly seven decades of marriage, their outfits still match — as do their hot pink walkers.

“She just lays it out for me — and I don’t have to worry about a thing!” Francis says.

In addition to being fashion plates with a color-coded closet, the lovebirds are also songbirds. They often perform at their local church, hospitals — and around the house.

“Promise me we’ll still be sweethearts after graduation day,” they sing together in two-part harmony. “We will always be together, though memories seem far away.”

Here’s another match made in heaven: Queens residents Naveen Chintamani and Deblina Halder also coordinate their outfits daily. “We won’t walk out [of the house] unless we’re matched,” Halder told The Post in 2017.