Ember

Ember provides four color palettes engineered to survive warm-screen filters such as Night Shift and Redshift, which shift each RGB channel differently and make ordinary colors collide. Each palette keeps contrast, perceptual separation, and ordered lightness both unfiltered and after its modeled 3400K, 2000K, or 1200K transform, covering terminal ANSI colors, categorical sets, and 256-sample sequential maps. It is an MIT-licensed Python project aimed at terminals, interfaces, charts, and heatmaps.