ctpvert

import { closest } from "https://deno.land/x/ctpvert/main.ts";

const myTheme = {
    foreground: "#000000",
    background: "#FFFFFF",
    accent: "#00ff00",
};

const catppuccinLatteTheme = Object.fromEntries(
    Object.entries(myTheme).map(([property, color]) => [
        property,
        closest(color)["latte"].hex,
    ])
);

console.log(catppuccinLatteTheme);
/* { foreground: "#4c4f69", background: "#eff1f5", accent: "#40a02b" } */