_color_blend

Versions
5 – 7
_color_blend($img, $hex1, $hex2, $alpha)

Blend two hex colors and return the GD color.

Code

modules/color/color.module, line 587

<?php
function _color_blend($img, $hex1, $hex2, $alpha) {
  $in1 = _color_unpack($hex1);
  $in2 = _color_unpack($hex2);
  $out = array($img);
  for ($i = 0; $i < 3; ++$i) {
    $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
  }
  return call_user_func_array('imagecolorallocate', $out);
}
?>
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