An objective specification of the quality of a colour, regardless of its luminance.

plural of chromaticity

(music) Chromatic harmonies or notes. / (optics) The science of colours; the branch of optics that deals with the properties of colours.

(obsolete) chromatic

(not comparable) Characterized or caused by, or relating to, colour or hue. / (comparable) Brightly coloured; colourful, vivid.

(biology) Relating to chromatin (“a complex of DNA, RNA, and proteins within the cell nucleus out of which chromosomes condense during cell division”).

The quality of being chromatic.

In a chromatic manner.

To treat a metal surface with chromate

plural of chromatism