import { relativeLuminance } from "https://deno.land/x/a11y_color_contrast@v0.2.0/wcag.ts";
See https://www.w3.org/WAI/WCAG22/Techniques/general/G17.html for concrete details for WCAG 2.2.
x/a11y_color_contrast/wcag.ts>relativeLuminance
import { relativeLuminance } from "https://deno.land/x/a11y_color_contrast@v0.2.0/wcag.ts";
See https://www.w3.org/WAI/WCAG22/Techniques/general/G17.html for concrete details for WCAG 2.2.