primary color
In color theory, one of the basic colors that cannot be created by mixing others (e.g., red, blue, yellow for pigments; red, green, blue for light).
The three primary colors of light are red, green, and blue.
pure color; unmixed color; striking color
A vivid, saturated color not dulled by mixing; often used to describe bold, eye-catching hues in art, design, or nature.
The pure blue of her dress was very vivid.
original color (of a painting, etc.)
Refers to the original, unfaded colors of an artwork or object, as opposed to a reproduction or aged version.
The restoration brought back the original colors of the mural.
This designer often uses bold primary colors.
She likes clothes in bold, primary colors.
The wall's color is close to a primary red.
Through restoration, the painting regained its original colors.