CMYKrum
CMYKrum is a proposed color encoding framework used in discussions of printed color reproduction. It extends the conventional CMYK color model by incorporating an additional chromatic- and substrate-aware component, referred to as the rum channel, to better capture how inks interact with different papers and coatings. In practice, CMYKrum seeks to describe both ink colorants and substrate effects within a single, device-oriented model, facilitating more consistent color prediction across printing devices and materials.
The model treats color as a five-dimensional vector (C, M, Y, K, R) where C, M, Y,
Applications of CMYKrum are primarily in color science research and educational contexts, where the goal is
The term CMYKrum originated in academic discussions in the early 2010s as a thought experiment for substrate-aware