declare namespace Ext {
    export namespace ux {
        export namespace colorpick {
            export interface ColorUtilsConfig {
            }

            export class ColorUtils extends Ext.Base  {
                public getRGBAString(rgba?: object): string;
                public getRGBString(rgb?: object): string;
                public hsv2rgb(h?: object, s?: object, v?: object): object;
                public parseColor(color?: string): object;
                public rgb2hex(r?: object, g?: object, b?: object): string;
                public rgb2hsv(r?: number, g?: number, b?: number): object;
            }
        }
    }
}