0xFF is just a different way of writing the decimal number 255; they are interchangeable in your Perl source code. Since decimal is the "native" number representation for humans, Perl outputs numbers in a decimal base, unless instructed otherwise.

The printf or sprintf function will coerce the numbers into hex strings: 

my @hex_nums = map { sprintf '%02X', $_ } 0..255;

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In reply to Re: Hex Numbers and Range Operator by Util
in thread Hex Numbers and Range Operator by awohld

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