Chromatics is the branch of optical physics devoted to understanding how light spectra interact with materials and the human visual system to produce color. It covers the measurement, mixing, and mathematical modeling of hues, saturation, and brightness. Lighting professionals use these principles to design sources that render objects accurately and calculate precise color coordinates.
We need to brush up on our chromatics before trying to match these disparate LED sources across the venue.
While 'colorimetry' is more commonly used for the strict measurement aspect, chromatics refers to the broader science of color.
Related terms
Chromaticity
Where a light's color sits on a color map once brightness is set aside, given as coordinates such as x, y or u', v'.
Chromaticity diagram
The horseshoe-shaped chart that maps every visible color by its chromaticity coordinates.
Metamerism
The effect where two colors match under one light source but not under another, because their spectra differ.