IPA: /ˌkʌləˈreɪʃən/
KK: /ˈkoʊləˌreɪʃən/
The way colors are arranged or used, especially in art or nature.
The artist's unique coloration made the painting stand out.
Coloration → It is formed from "color" (from Latin "color", meaning hue or appearance) and "-ation" (meaning the action or process of). The word "coloration" refers to the process or result of coloring something or the state of being colored.
Think of the word 'color' which refers to hues and 'ation' indicating a process. This helps you remember that 'coloration' is about the process of adding color.