contrastrast/esm/utils/textContrast.js

A lightweight tool that parses color strings and recommends text contrast based on WCAG Standards

import { WCAG_LEVELS } from "../constants.js";
import { contrastRatio } from "./contrastRatio.js";
export function textContrast(foreground, background, options = {}) {
    const { returnDetails = false } = options;
    const ratio = contrastRatio(foreground, background);
    if (!returnDetails) {
        return ratio;
    }
    const passes = {
        AA_NORMAL: ratio >= WCAG_LEVELS["AA"]["normal"],
        AA_LARGE: ratio >= WCAG_LEVELS["AA"]["large"],
        AAA_NORMAL: ratio >= WCAG_LEVELS["AAA"]["normal"],
        AAA_LARGE: ratio >= WCAG_LEVELS["AAA"]["large"],
    };
    return {
        ratio,
        passes,
    };
}