1. the purity or intensity of a color; the degree to which a color differs from gray
Usage: technical term in color theory
2. the colorfulness of an area judged as a proportion of the brightness of a similarly illuminated area that appears white or highly transmitting
Usage: technical term in colorimetry

Examples

• The artist increased the chroma of the painting by using more vivid pigments.
• High chroma colors appear bright and saturated.
• The sunset displayed colors with exceptional chroma against the gray sky.
• Digital displays can reproduce a wide range of chroma values.
• The designer reduced the chroma to create a more muted color palette.
• Chroma is one of the three dimensions of color along with hue and lightness.