/**
 * APITable <https://github.com/apitable/apitable>
 * Copyright (C) 2022 APITable Ltd. <https://apitable.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
/**
 * Take the incoming color as the basic color of the action, and obtain its hover and active colors according to the calculation rules
 * InputColor's shade in the palette
 * When the shade is greater than 700: hoverShade = shade - 2, activeShade = shade - 4
 * When the shade is less than or equal to 700: hoverShade = shade + 1, activeShade = shade + 2
 * @param color hex color
 */
export declare const getActionColor: (color: string) => {
    hover: any;
    active: any;
};
/**
 * (red[500], 1) => red[600]
 * @param color Any Hex color in the color palette, such as red[500]
 * @param gap shade gap
 */
export declare const getNextShadeColor: (color: string, gap: number) => string;
/**
 *
 * Automatically generate foreground text color according to background color: light/dark
 * @param background `string` Like #nnn, #nnnnnn, rgb(), rgba(), hsl(), hsla()
 * @param contrastThreshold `number` Contrast Threshold
 * @returns
 */
export declare function getContrastText(background: string, contrastThreshold: number): string;
export declare function decomposeColor(color: string): {
    type: string;
    values: number[];
};
/**
 *
 * @param color Hex color
 * @param opacity
 */
export declare function convertHexToRGB(color: string, opacity?: number): string;
export declare function getContrastRatio(foreground: string, background: string): number;
export declare function getLuminance(color: string): number;
/**
 * rgba + default white background is converted to the superimposed hex color without transparency
 * adjustedColor = opacity * foregroundColor + (1 - opacity) * backgroundColor
 * @param foregroundColor Color with alpha format，such as rgba(200, 115, 115, 0.5)
 * @param backgroundColor background color
 */
export declare const rgba2hex: (foregroundColor: string, backgroundColor?: string) => string;
/**
 * Adjust the transparency of rgba colors
 * @param rgbaColor Rgba color
 * @param opacity
 */
export declare const editRgbaOpacity: (rgbaColor: string, opacity: number) => string;
export declare const FourStatusColorMap: {
    default: string;
    error: string;
    warning: string;
    success: string;
};
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