In order to achieve a well-balanced color scheme, Erica Schoonmaker introduced Cohesive Colors in a 2016 Dribbble shot. To ensure that a color scheme doesn’t consist of both harsh and soft tones, which usually doesn’t work outside of brutalist design, she overlays a central color on the others with reduced opacity, and chooses the colors that result from it.
I’ve been using this method for years to create and clean up color libraries.
I recently learned that Javier Bórquez made a nifty tool for it. That’s great, because I’d been making screenshots for years, and results varied depending on the environment in which these screenshots were being used. Figma, I’m looking at you.