import { RGB, HSL, RGBString } from "./types";
export declare class Pigment {
    readonly hex: string;
    readonly rgb: [number, number, number];
    readonly irgb: RGB;
    readonly rgbString: RGBString;
    readonly hsl: [number, number, number];
    readonly ihsl: HSL;
    readonly hue: number;
    readonly saturation: number;
    readonly lightness: number;
    readonly hslString: string;
    readonly relativeLuminance: number;
    readonly textColourHex: string;
    constructor(hex?: string);
    /**
     * Convert to HSL, rotate hue 180 degrees, convert
     * back to RGB and instantiate pigmentjs with hex
     */
    complementary(): Pigment;
    /**
     * Convert to HSL, rotate hue 120 degrees (twice), convert
     * back to RGB and instantiate pigmentjs with hex
     */
    triad(): [Pigment, Pigment, Pigment];
    monochrome(size: number): Pigment[];
    shades(size: number): Pigment[];
    tints(size: number): Pigment[];
    /**
     * Return either white or black depending on the relative luminance
     * of the primary colour. Can be used to ensure text is legible
     *
     * @returns {String} either '#FFFFFF' or '#000000'
     */
    _textColourHex(relativeLuminance: number): string;
}
export default Pigment;