Add more strength to input color, Javascript

Add more strength to input color

//JavaScript-C24.2.0 (SpiderMonkey)

print(addMoreStrength2Color("e24000"));

function addMoreStrength2Color(hex){
    var r, g, b, h, s, l, len, m1, m2, d;
    
    if (hex === "") hex = "000000";
    if (hex.charAt(0) === "#") hex = hex.substring(1, hex.length);
    if (hex.length !== 6) return hex;
    
    r = hex.substring(0, 2);
    g = hex.substring(2, 4);
    b = hex.substring(4, 6);
    r = parseInt(r, 16);
    g = parseInt(g, 16);
    b = parseInt(b, 16);

if (r < 0) r = 0;
    if (g < 0) g = 0;
    if (b < 0) b = 0;
    if (r > 255) r = 255;
    if (g > 255) g = 255;
    if (b > 255) b = 255;

hex = hex.toString(16, 6);
    len = hex.length;
    if (len < 6)
        for (i = 0; i < 6 - len; i++)
            hex = '0' + hex;
    r /= 255;
    g /= 255;
    b /= 255;

m1 = Math.max(r, g, b);
    m2 = Math.min(r, g, b);
    d = m1 - m2;

if (d == 0) h = 0;
    else if (m1 == r) h = ((g - b) / d) % 6;
    else if (m1 == g) h = (b - r) / d + 2;
    else h = (r - g) / d + 4;
    h *= 60;
    if (h < 0) h += 360;
    l = (m1 + m2) / 2;
    if (d == 0)
        s = 0;
    else
        s = d / (1 - Math.abs(2 * l - 1));
    s *= 100;
    l *= 100;
    
    if (l > 30)
        l = 30;

if (h < 0) h = 0;
    if (s < 0) s = 0;
    if (l < 0) l = 0;
    if (h >= 360) h = 359;
    if (s > 100) s = 100;
    if (l > 100) l = 100;
    s /= 100;
    l /= 100;

return hex;
}


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