What is the meaning of Chroma?

Color.

The colorfulness relative to the brightness of a similarly illuminated area

The aspect of a colour's hue that depends on the amount of white or black in it; saturation

Short for chromatic semitone

lenited form of croma

feminine nominative singular of chromy

feminine nominative/vocative singular of chromy

third-person singular present of chromać

Source: wiktionary.org