Tool Open source
Ember is a collection of redshift-aware color palettes for terminals, interfaces, charts, and heat maps. It models warm-screen filters at 3400 K, 2000 K, and 1200 K, where each RGB channel is multiplied by a different gain, and supplies palettes designed to preserve text readability, categorical color separation, contrast, perceptual separation, and ordered lightness after the modeled transform. It includes neutral or warm-neutral text and surface colors, terminal accents, categorical palettes, and 256-sample sequential maps; deeper filters intentionally provide fewer distinct semantic colors and may assign unsupported ANSI names as aliases.
The palettes are distributed in terminal, CSS, JSON, Python, and Matplotlib formats. The repository documents deterministic filtered-output simulations based on published gains rather than photographs, calibrated physical color temperatures, or predictions of every display pipeline.
1 use taken from transcripts — each links to the moment in the video.
Builds color palettes for terminals, charts, heat maps, and interfaces that remain distinguishable under strong warm-screen filters. It ships red-shift profiles in terminal, CSS, JSON, Python, and Matplotlib formats.
1 in the library.