export interface IRGB {
    get r(): number;
    get g(): number;
    get b(): number;
}
export interface IRGBA extends IRGB {
    get a(): number | undefined;
}
export declare class RGBA implements IRGBA {
    private static readonly _minColorValue;
    private static readonly _maxColorValue;
    private readonly _r;
    private readonly _g;
    private readonly _b;
    private readonly _a;
    get r(): number;
    get g(): number;
    get b(): number;
    get a(): number | undefined;
    constructor(r: number, g: number, b: number, a?: number | undefined);
    private static _clampColor;
}