IPA: /krəʊˈmætɪkli/
KK: /kroʊˈmætɪkli/
In a way that relates to colors or the spectrum of colors.
The artist painted the landscape chromatically, using vibrant colors to express emotion.
Chromatically → It is formed from "chroma" (from Greek "chroma", meaning color) and the suffix "-ically" (meaning in a manner relating to). The word "chromatically" refers to something that relates to or is characterized by color.
Think of 'chroma' which means color, and remember that 'chromatically' describes something that relates to color.