contrastrast/script/utils/textContrast.js

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

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.textContrast = textContrast;
const constants_js_1 = require("../constants.js");
const contrastRatio_js_1 = require("./contrastRatio.js");
function textContrast(foreground, background, options = {}) {
    const { returnDetails = false } = options;
    const ratio = (0, contrastRatio_js_1.contrastRatio)(foreground, background);
    if (!returnDetails) {
        return ratio;
    }
    const passes = {
        AA_NORMAL: ratio >= constants_js_1.WCAG_LEVELS["AA"]["normal"],
        AA_LARGE: ratio >= constants_js_1.WCAG_LEVELS["AA"]["large"],
        AAA_NORMAL: ratio >= constants_js_1.WCAG_LEVELS["AAA"]["normal"],
        AAA_LARGE: ratio >= constants_js_1.WCAG_LEVELS["AAA"]["large"],
    };
    return {
        ratio,
        passes,
    };
}