The Pros Have Spoken: These Are the 15 Hair-Color Trends Making a Splash in 2020

This one is in honor of festival season. While pastel hues reigned supreme at Coachella last year, vivid neon colors and glow-in-the-dark neons will live on in 2020.

"These can be applied over existing highlights and balayage hair for a hint of color, or all over on pre-lightened hair," Papanikolas said. If glow-in-the-dark hair is out of your realm of hair dye knowledge he recommends the Matrix SoColor Cult to achieve a color that glows under black lights.