import { type HEX } from 'color-convert/conversions';
import { type GridColor } from './GridTheme';
export type RGB = {
    r: number;
    g: number;
    b: number;
};
export type Oklab = {
    L: number;
    a: number;
    b: number;
};
/**
 * Darken the provided colour
 * @param color Color in hex format to convert (with #)
 * @param depth Depth to convert the color to
 * @param maxDepth Maximum depth. Defaults to 6
 * @returns Darkened colour in hex format
 */
export declare function darkenForDepth(color: HEX, depth: number, maxDepth?: number): GridColor;
/**
 * Convert a hex colour to an rgba with specified alpha
 * @param color Color in hex format to convert (with #)
 * @param alpha Alpha to apply to the color
 * @returns Color with the newly applied alpha in rgba format
 */
export declare function colorWithAlpha(color: HEX, alpha: number): GridColor;
declare const _default: {
    colorWithAlpha: typeof colorWithAlpha;
    darkenForDepth: typeof darkenForDepth;
    linearSRGBToOklab: (color: RGB) => Oklab;
    OklabToLinearSRGB: (color: Oklab) => RGB;
    hexToRgb: (hex: string) => RGB;
    rgbToHex: (color: RGB) => string;
    lerpColor: (color1: Oklab, color2: Oklab, factor: number) => Oklab;
};
export default _default;
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