RGB Conversions

rgb_conversions.js

/*

  rgb_hex_to_rgb_list

  Example input:
      rgb_hex_to_rgb_list("ffffff");

  Output:
      [255,255,255]

*/

function rgb_hex_to_rgb_list(hex){
  
  var r = parseInt(hex.slice(0,2), 16);
  var g = parseInt(hex.slice(2,4), 16);
  var b = parseInt(hex.slice(4,6), 16);

  return [r,g,b];

}

/*

  rgb_list_to_rgb_hex

  Example input:
      rgb_list_to_rgb_hex([255,255,255]);

  Output:
      ffffff

*/

function rgb_list_to_rgb_hex(lst){
    
  var r = lst[0].toString(16);
  r = (r.length < 2) ? '0' + r : r;

  var g = lst[1].toString(16);
  g = (g.length < 2) ? '0' + g : g;

  var b = lst[2].toString(16);
  b = (b.length < 2) ? '0' + b : b;

  return r + g + b;

}

Quick fix for maintaining leading zeros in rgb_list_to_rgb_hex(lst) :
r = (r.length < 2) ? '0'+r : r;
.
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