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Easy Hex Color Invert

  1. let color = 0xFFFF00;
  2.  
  3. function toHexString(col) { 
  4.   return '#' + ('000000' + col.toString(16)).substr(-6);
  5. }
  6.  
  7. function onClick() {
  8.   // invert the color
  9.   color ^= 0xFFFFFF;
  10.   document.body.style.background = toHexString(color);
  11. }
  12.  
  13. onClick();
  14.  
  15. document.addEventListener('click', onClick);
  16.  
  17. console.log('try a different initial color');
  18. console.log('click anywhere to invert background...');

Easily invert a hex color. Expanding on yesterdays post – just one of many reasons you may want to work with colors in their integer form.

// color // hex // javascript // math // tricks
snippet.zone ~ 2021-22 /// {s/z}