How can I generate the opposite color according to current color?

Question

I\'m trying to create a color opposite of current color. I mean if current color is black, then I need to generate white.

Actually I have a text

Answer 1

It is possible to convert a HEX color using the snippets

function invertColor(color) {
      return '#' + ("000000" + (0xFFFFFF ^ parseInt(color.substring(1),16)).toString(16)).slice(-6);
  }