import { MessageFunctionType, Result } from '../types';
export interface IsRgbColorErrors {
    TARGET_ARGUMENT_NOT_A_STRING: MessageFunctionType;
}
export declare const IS_RGB_COLOR_ERRORS: IsRgbColorErrors;
/**
 * Check if `target` is a valid RGB color
 *
 * ### Example
 * ```
 * expect(isRgbColor('rgb(0,0,0)').value).toBeTruthy()
 * ```
 * @param target The RGB color
 *
 */
export declare function isRgbColor(target: string, includePercentValues?: string): Result<boolean | undefined>;