export declare function rgb2cmyk(r: number, g: number, b: number): {
    c: number;
    m: number;
    k: number;
    y: number;
};
export declare const cmykToRgb: ({ c, m, y, k, }: {
    c: number;
    m: number;
    y: number;
    k: number;
}) => {
    r: number;
    g: number;
    b: number;
};
export declare const getHexAlpha: (opacityPercent: number) => string;