De-coloring refers to the process of removing or reducing the color intensity of something. The antonyms for de-coloring would be words that indicate the opposite effect, such as coloring, dyeing, tinting, or pigmentation. Coloring refers to the addition of color, while dyeing refers to the use of chemical agents to change the color of an object or material. Tinting involves the addition of a hue or shade to a color, while pigmentation refers to the natural color present in something. These antonyms offer various solutions to enhance or modify color, as opposed to removing or reducing it.