

export default {
    colorLuminance: function (hex, lum) {
        hex = String(hex).replace(/[^0-9a-f]/gi, '');
        if (hex.length < 6) {
            hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2];
        }
        lum = lum || 0;

        var rgb = "#", c, i;
        for (i = 0; i < 3; i++) {
            c = parseInt(hex.substr(i * 2, 2), 16);
            c = Math.round(Math.min(Math.max(0, c + (c * lum)), 255)).toString(16);
            rgb += ("00" + c).substr(c.length);
        }

        return rgb;
    },
    hexToRgb: function (hex) {
        var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
        return result ? {
            r: parseInt(result[1], 16),
            g: parseInt(result[2], 16),
            b: parseInt(result[3], 16)
        } : null;
    }
};
