style-dictionary-utils/dist/utilities/alpha.js

Utilities to use in your style dictionary config

import { rgba, parseToRgba } from 'color2k';
/**
 * alpha
 * @param color color string like a `#334455` or `rgb(255,200,100)`
 * @param desiredAlpha number
 * @returns rgba value
 */
export const alpha = (color, desiredAlpha = 1) => {
    const [r, g, b] = parseToRgba(color);
    return rgba(r, g, b, desiredAlpha);
};