/**
 * Type definition for the useAccessibleColor hook
 * @param hex - The hex color to generate accessible colors for
 * @param mode - The color mode (light or dark)
 * @returns Object containing accessible foreground, background, and border colors
 */
export type UseAccessibleColorType = (hex?: string, mode?: "light" | "dark") => {
    foreground?: string;
    background?: string;
    border?: string;
};
/**
 * Custom hook for generating accessible color combinations that meet WCAG contrast requirements.
 *
 * Features:
 * - Generates accessible foreground, background, and border colors
 * - Supports both light and dark color modes
 * - Ensures WCAG contrast ratio compliance (4.5:1 for text, 3:1 for borders)
 * - Automatically adjusts colors to meet accessibility standards
 * - Handles invalid color inputs gracefully
 * - Uses tinycolor2 for color manipulation and contrast calculations
 * - Optimized with useMemo for performance
 * - Implements intelligent color selection algorithms
 * - Provides fallback strategies for edge cases
 * - Supports dynamic theme switching
 *
 * Algorithm Details:
 * - Light Mode: Selects white or dark text based on background contrast
 * - Dark Mode: Adjusts both foreground and background for optimal contrast
 * - Border Generation: Ensures 3:1 contrast ratio with page background
 * - Iterative Adjustment: Uses up to 16 iterations for color optimization
 * - Luminance Thresholds: Maintains appropriate darkness levels for dark themes
 *
 * @param hex - The hex color to generate accessible colors for (e.g., "#FF0000")
 * @param mode - The color mode ("light" or "dark") for context-aware color generation
 * @returns Object containing accessible foreground, background, and border colors in hex format
 */
export declare const useAccessibleColor: UseAccessibleColorType;