Passende Textfarbe zu RGB-Hintergrundfarbe

Passende Textfarbe zu RGB-Farbe

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Dieses PHP-Script liefert die passende Textfarbe (weiß oder schwarz) zu einer gegebenen RGB-Farbe.

<?php
/*
    This Software returns a suitable text color of a given rgb background color.

    Copyright (C) 2020  Guido Richter / tintenkobold.de

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License [http://www.gnu.org/licenses/] for more details.
*/

function text_color_fit_rgb($r,$g,$b) 
{ 
    $y = 0.299 * $r + 0.587 * $g + 0.114 * $b; 
    if($y<=(255/2))	return array(255,255,255);
    else 		return array(0,0,0);
}

?>

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