Combine "subtle" and "ombré," you get sombré. So what do you get when a hair color trend combines brunette and blonde shades? You get "bronde," of course.

Bronde is a highly customizable look that uses natural brown as an all-over color, adding babylights and light ends for a more natural, multi-chromatic effect, says Garcia.

The look is more universally flattering than full-on blonde -- so, for those who want to go lighter, but are too cool (or too nervous) to go platinum, this fall hair color gives that California girl vibe without going all the way. It's also a great fall hair color for transitioning out of a harsh ombré style.

Bronde is low-upkeep -- similar to sombré, depending on how natural a look you're going for. But by far the lowest-maintenance version of bronde is the "lived-in color" technique. Pioneered by celebrity colorist Johnny Ramirez, "lived-in color" is a detailed highlighting method that results in a gorgeous, natural bronde, which lasts six months or more.

Instead of going full honey blonde, opt for cool girl Delevingne's subtler blend.

Lopez is the ultimate bronde bombshell.

Alba's bronde was achieved by Ramirez, who painstakingly toned and highlighted to create her gorgeous highlighted look.

Photograph courtesy of RamirezTran.com

According to Garcia, wood-inspired brunette hair colors are in for fall. So, if you don't want to go too trendy, opt for an elegant reddish brown.

"Combining dark browns with copper [creates] a more wintery, organic palette," he says. (Think of this as a deeper update of last winter's "ronze"). Coppers offer just enough red to keep the skin looking warm and healthy and are especially flattering on those with olive skin tones.

Depending on the color with which you come into the salon (dyed blonde, brunette or virgin hair), the process to achieve a coppery brunette varies. Woods suggests asking your stylist for a copper shade that has some high-low dimension to keep the look "soft and natural."

Like other reddish hues, copper tends to fade quickly and requires a bit more upkeep. Expect to go into the salon for touchups every six to eight weeks.