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Edit File: BIFF5.php

<?php

class PHPExcel_Reader_Excel5_Color_BIFF5
{
    protected static $map = array(
        0x08 => '000000',
        0x09 => 'FFFFFF',
        0x0A => 'FF0000',
        0x0B => '00FF00',
        0x0C => '0000FF',
        0x0D => 'FFFF00',
        0x0E => 'FF00FF',
        0x0F => '00FFFF',
        0x10 => '800000',
        0x11 => '008000',
        0x12 => '000080',
        0x13 => '808000',
        0x14 => '800080',
        0x15 => '008080',
        0x16 => 'C0C0C0',
        0x17 => '808080',
        0x18 => '8080FF',
        0x19 => '802060',
        0x1A => 'FFFFC0',
        0x1B => 'A0E0F0',
        0x1C => '600080',
        0x1D => 'FF8080',
        0x1E => '0080C0',
        0x1F => 'C0C0FF',
        0x20 => '000080',
        0x21 => 'FF00FF',
        0x22 => 'FFFF00',
        0x23 => '00FFFF',
        0x24 => '800080',
        0x25 => '800000',
        0x26 => '008080',
        0x27 => '0000FF',
        0x28 => '00CFFF',
        0x29 => '69FFFF',
        0x2A => 'E0FFE0',
        0x2B => 'FFFF80',
        0x2C => 'A6CAF0',
        0x2D => 'DD9CB3',
        0x2E => 'B38FEE',
        0x2F => 'E3E3E3',
        0x30 => '2A6FF9',
        0x31 => '3FB8CD',
        0x32 => '488436',
        0x33 => '958C41',
        0x34 => '8E5E42',
        0x35 => 'A0627A',
        0x36 => '624FAC',
        0x37 => '969696',
        0x38 => '1D2FBE',
        0x39 => '286676',
        0x3A => '004500',
        0x3B => '453E01',
        0x3C => '6A2813',
        0x3D => '85396A',
        0x3E => '4A3285',
        0x3F => '424242',
    );

/**
     * Map color array from BIFF5 built-in color index
     *
     * @param int $color
     * @return array
     */
    public static function lookup($color)
    {
        if (isset(self::$map[$color])) {
            return array('rgb' => self::$map[$color]);
        }
        return array('rgb' => '000000');
    }
}