import type { Colord } from "./colord";
export declare abstract class AbsColor {
    private colordCache?;
    toHex(format?: "RGB" | "RRGGBB" | "default" | null | undefined): string | null;
    toName(): string | null;
    abstract isComplete(): boolean;
    abstract getAlpha(): number | null;
    abstract removeAlpha(): AbsColor;
    abstract toColorString(): string;
    protected abstract newColord(): Colord | null;
    protected toHexImpl(): string | undefined | null;
    protected toNameImpl(): string | undefined | null;
    protected getColord(): Colord | null;
}