@thi.ng/color/xyz/wavelength-xyz.d.ts

Array-based color types, CSS parsing, conversions, transformations, declarative theme generation, gradients, presets

import { type XYZD65 } from "./xyz65.js";
/**
 * Computes XYZA for given wavelength (in nanometers) and optional alpha channel
 * (default: 1), writes result into `out` (or a new array if null).
 *
 * @remarks
 * Reference: https://en.wikipedia.org/wiki/CIE_1931_color_space#Analytical_approximation
 *
 * Primary hues (approx. wavelengths):
 *
 * - 460 => blue
 * - 490 => cyan
 * - 530 => green
 * - 570 => yellow
 * - 610 => red
 *
 * @param out -
 * @param lambda -
 * @param alpha -
 */
export declare const wavelengthXyz: (out: XYZD65 | null, lambda: number, alpha?: number) => XYZD65;
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