/**
 * Color Utilities
 *
 * Color manipulation and mapping functions for galaxy visualization.
 */
import * as THREE from 'three';
import type { SensitivityLevel, SecurityTier, AuthLevel, DataOperation } from '../types/index.js';
/**
 * Convert hex color to THREE.Color
 */
export declare function hexToThreeColor(hex: string): THREE.Color;
/**
 * Convert hex to RGB object
 */
export declare function hexToRgb(hex: string): {
    r: number;
    g: number;
    b: number;
};
/**
 * Interpolate between two colors
 */
export declare function lerpColor(color1: string, color2: string, t: number): string;
/**
 * Brighten a color
 */
export declare function brightenColor(hex: string, factor: number): string;
/**
 * Darken a color
 */
export declare function darkenColor(hex: string, factor: number): string;
/**
 * Get color for sensitivity level
 */
export declare function getSensitivityColor(level: SensitivityLevel): string;
/**
 * Get THREE.Color for sensitivity level
 */
export declare function getSensitivityThreeColor(level: SensitivityLevel): THREE.Color;
/**
 * Get emissive intensity for sensitivity level
 */
export declare function getSensitivityEmissive(level: SensitivityLevel): number;
/**
 * Get sensitivity level from numeric score (0-100)
 */
export declare function scoreToSensitivity(score: number): SensitivityLevel;
/**
 * Get color for security tier
 */
export declare function getSecurityTierColor(tier: SecurityTier): string;
/**
 * Get THREE.Color for security tier
 */
export declare function getSecurityTierThreeColor(tier: SecurityTier): THREE.Color;
/**
 * Get color for auth level
 */
export declare function getAuthLevelColor(level: AuthLevel): string;
/**
 * Get THREE.Color for auth level
 */
export declare function getAuthLevelThreeColor(level: AuthLevel): THREE.Color;
/**
 * Get color for data operation
 */
export declare function getOperationColor(operation: DataOperation): string;
/**
 * Get THREE.Color for data operation
 */
export declare function getOperationThreeColor(operation: DataOperation): THREE.Color;
/**
 * Get color for cluster
 */
export declare function getClusterColor(cluster: string): string;
/**
 * Get THREE.Color for cluster
 */
export declare function getClusterThreeColor(cluster: string): THREE.Color;
/**
 * Generate a gradient texture for paths
 */
export declare function createGradientTexture(color1: string, color2: string, width?: number): THREE.DataTexture;
/**
 * Calculate pulse color based on time
 */
export declare function getPulseColor(baseColor: string, time: number, frequency?: number, intensity?: number): string;
/**
 * Calculate pulse opacity based on time
 */
export declare function getPulseOpacity(baseOpacity: number, time: number, frequency?: number, range?: number): number;
/**
 * Get color for health score (0-100)
 */
export declare function getHealthScoreColor(score: number): string;
/**
 * Get THREE.Color for health score
 */
export declare function getHealthScoreThreeColor(score: number): THREE.Color;
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