export declare class ThemeColor {
    private _r;
    private _g;
    private _b;
    private _a;
    constructor(_r: string, _g: string, _b: string, _a?: string);
    /**
     * Create a ThemeColor object from a CSS color string
     * @param value The CSS color string to derive a ThemeColor object from
     */
    static parse(value: string): ThemeColor;
    /**
     * Clone a theme color so it can be modified without affecting other places using the color
     * @param themeColor The original theme color to clone
     */
    static from(themeColor: ThemeColor): ThemeColor;
    /**
     * Determine if an object is an instance of a theme color.
     * Using a simple instanceof check will not always work in plunker
     * where the ThemeColor is from @ux-aspects/ux-aspects and the color
     * comes from @micro-focus/ux-aspects
     */
    static isInstanceOf(themeColor: unknown): themeColor is ThemeColor;
    /**
     * Convert the theme color to a CSS hex color code
     */
    toHex(): string;
    /**
     * Convert the theme color to a CSS rgb color code
     */
    toRgb(): string;
    /**
     * Convert the theme color to a CSS rgbs color code
     */
    toRgba(): string;
    /**
     * Get the red value from the RGBA color value
     */
    getRed(): string;
    /**
     * Get the green value from the RGBA color value
     */
    getGreen(): string;
    /**
     * Get the blue value from the RGBA color value
     */
    getBlue(): string;
    /**
     * Get the alpha value from the RGBA color value
     */
    getAlpha(): string;
    /**
     * Set the red value from the RGBA color value
     */
    setRed(red: string): this;
    /**
     * Set the green value from the RGBA color value
     */
    setGreen(green: string): this;
    /**
     * Set the blue value from the RGBA color value
     */
    setBlue(blue: string): this;
    /**
     * Set the alpha value from the RGBA color value
     */
    setAlpha(alpha: string | number): this;
}