import { SeededRandom } from './seededRandom.js';
/**
 * Color value - hex string, CSS color, or RGB array
 */
export type ColorValue = string | [number, number, number];
/**
 * Color palette - single color, array of colors, or array of color arrays
 * Arrays support interpolation between colors
 */
export type ColorPalette = ColorValue | ColorValue[] | ColorValue[][];
/**
 * Standard color options for themes
 */
export interface ColorOptions {
    /** Background color(s) - single color, array, or array of arrays */
    background?: ColorPalette;
    /** Foreground color(s) - single color, array, or array of arrays */
    foreground?: ColorPalette;
    /** Enable color interpolation for arrays (default: true) */
    interpolate?: boolean;
    /** Random hue variation in degrees 0-360 (default: 0) */
    hueVariation?: number;
    /** Random saturation variation 0-100 (default: 0) */
    saturationVariation?: number;
    /** Random lightness variation 0-100 (default: 0) */
    lightnessVariation?: number;
}
/**
 * Internal RGB color representation
 */
export interface Color {
    r: number;
    g: number;
    b: number;
}
/**
 * Parse color value to RGB
 */
export declare function parseColor(value: ColorValue): Color;
/**
 * Convert Color to CSS string
 */
export declare function colorToString(color: Color): string;
/**
 * Convert RGB to HSL
 */
export declare function rgbToHsl(color: Color): {
    h: number;
    s: number;
    l: number;
};
/**
 * Convert HSL to RGB
 */
export declare function hslToRgb(h: number, s: number, l: number): Color;
/**
 * Interpolate between two colors in RGB space
 */
export declare function interpolateColors(color1: Color, color2: Color, t: number): Color;
/**
 * Apply random variations to color
 */
export declare function varyColor(color: Color, random: SeededRandom, options: Pick<ColorOptions, 'hueVariation' | 'saturationVariation' | 'lightnessVariation'>): Color;
/**
 * Pick background color
 */
export declare function pickBackgroundColor(options: ColorOptions, random: SeededRandom): Color;
/**
 * Pick foreground color
 */
export declare function pickForegroundColor(options: ColorOptions, random: SeededRandom): Color;
/**
 * Pick multiple colors from palette
 * @param count - Number of colors to pick
 * @param source - Pick from 'foreground' or 'background' (default: 'foreground')
 */
export declare function pickColors(options: ColorOptions, random: SeededRandom, count: number, source?: 'foreground' | 'background'): Color[];
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