/**
 * Color space names supported by CSS.
 */
export declare const CSS_SPACES: readonly ["sRGB", "display-p3", "rec2020", "a98-rgb", "prophoto-rgb", "rec2020"];
/**
 * Functions supported by CSS to produce color.
 */
export declare const CSS_FUNCTIONS: readonly ["rgb", "rgba", "hsl", "hsla", "hwb", "cmyk", "lab", "lch", "color"];
export declare type CSSFunction = typeof CSS_FUNCTIONS[number];
export declare type CSSSpace = typeof CSS_SPACES[number];
export declare const HUMAN_COLORS: string[];