/**
 * @license W3C
 * https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document
 *
 * @copyright This software or document includes material copied from or derived from https://github.com/w3c/csswg-drafts/blob/main/css-color-4/deltaEOK.js. Copyright ﾂｩ 2022 W3Cﾂｮ (MIT, ERCIM, Keio, Beihang).
 *
 * @see https://github.com/w3c/csswg-drafts/blob/main/css-color-4/deltaEOK.js
 */
declare type color = [number, number, number];
export declare function deltaEOK(reference: color, sample: color): number;
export {};