export declare function string_to_hex(str: string): string;
export declare const string_to_hex_dict: {
    red: string;
    lightred: string;
    blue: string;
    lightblue: string;
    lightskyblue: string;
    green: string;
    lightgreen: string;
    yellow: string;
    lightyellow: string;
    orange: string;
    lightorange: string;
    cyan: string;
    lightcyan: string;
    rose: string;
    lightrose: string;
    violet: string;
    lightviolet: string;
    white: string;
    black: string;
    brown: string;
    lightbrown: string;
    grey: string;
    lightgrey: string;
};
export declare const hex_to_string_dict: {
    [k: string]: string;
};
export declare const rgb_to_string_dict: {
    [k: string]: string;
};
export declare function rgb_to_hex(rgb: string): string;
export declare function isColorInDict(str: string): boolean;
export declare function hex_to_string(hexa: string): string;
export declare function hexToRgbObj(hex: any): Object;
export declare function hex_to_rgb(hex: string): string;
export declare function rgb_to_string(rgb: string): string;
export declare function string_to_rgb(str: string): string;
export declare function color_to_string(color: string): string;
export declare function average_color(rgb1: string, rgb2: string): string;
export declare function rgb_interpolation([r1, g1, b1]: [any, any, any], [r2, g2, b2]: [any, any, any], n: number): string[];
export declare function get_interpolation_colors(rgbs: [number, number, number][], nb_pts: number): string[];
export declare function heatmap_color(density: any, max_density: any, colors: any): string;
export declare function rgb_strToVector(rgb: string): [number, number, number];
export declare function rgb_vectorToStr(r: number, g: number, b: number): string;
export declare function tint_rgb(rgb: string, coeff: number): string;
export declare function darken_rgb(rgb: string, coeff: number): string;
export declare function isRGB(str: string): boolean;
export declare function isHex(str: string): boolean;
