/**
 * BRO Soil Color Utilities
 *
 * Maps Dutch BRO soil color names to hex color values.
 * Colors are based on Munsell soil color chart conversions.
 *
 * Color naming convention:
 * - licht* (light), standaard* (standard), donker* (dark)
 * - Base colors: Blauw, Bruin, Geel, Grijs, Groen, Olijf, Oranje, Rood
 * - Special: wit (white), zwart (black)
 *
 * @example
 * ```typescript
 * import { BRO_SOIL_COLORS, getSoilColor } from '@bedrock-engineer/bro-xml-parser';
 *
 * // Direct lookup
 * const hex = BRO_SOIL_COLORS['lichtBruin']; // '#b79a77'
 *
 * // Helper function (case-insensitive)
 * const color = getSoilColor('lichtbruin'); // '#b79a77'
 * const unknown = getSoilColor('invalid'); // null
 * ```
 */
/**
 * BRO soil color name to hex color mapping
 *
 * Based on Munsell soil color chart averages as defined in the BRO standard.
 */
export declare const BRO_SOIL_COLORS: Record<string, string>;
/**
 * Get the hex color for a BRO soil color name.
 *
 * @param colorName - BRO color name (e.g., "lichtBruin", "donkerGrijs")
 * @returns Hex color string, or `null` if the name is not found
 *
 * @example
 * ```typescript
 * getSoilColor('lichtBruin'); // '#b79a77'
 * getSoilColor('LICHTBRUIN'); // '#b79a77' (case-insensitive)
 * getSoilColor('unknown');    // null
 * ```
 */
export declare function getSoilColor(colorName: string): string | null;
/**
 * Get the hex color for a BRO soil color name, falling back to a default.
 *
 * @param colorName - BRO color name (e.g., "lichtBruin", "donkerGrijs")
 * @param defaultColor - Fallback color returned when the name is not found
 * @returns Hex color string, or `defaultColor` if the name is not found
 *
 * @example
 * ```typescript
 * getSoilColor('unknown', '#808080'); // '#808080'
 * ```
 */
export declare function getSoilColor(colorName: string, defaultColor: string): string;
/**
 * Check if a color name is a valid BRO soil color
 *
 * @param colorName - Color name to validate
 * @returns true if the color name is recognized
 */
export declare function isValidSoilColor(colorName: string): boolean;
/**
 * Get all available BRO soil color names
 *
 * @returns Array of color names in their canonical form
 */
export declare function getSoilColorNames(): Array<string>;
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