#!/usr/bin/perl

use strict;
use warnings;
use List::AllUtils qw( max_by );

my $data  = [
      {
        'Color' => 'green',
        'Step' => 'Platform',
        'acc' => '1111',
        'Date' => '08-06-2022'
      },
      {
        'Color' => 'black',
        'Step' => 'Platform',
        'acc' => '1111',
        'Date' => '01-05-2019'
      },
      {
        'Color' => 'blue',
        'Step' => 'Platform',
        'acc' => '1111',
        'Date' => '10-11-2020'
      },
      {
        'Color' => 'white',
        'Step' => 'Platform',
        'acc' => '1111',
        'Date' => '01-03-2022'
      },
      {
        'Color' => 'red',
        'Step' => 'Platform',
        'acc' => '1111',
        'Date' => '03-21-2021'
      },
      ];

my $mostrecent = max_by
  { my @fields = split /-/, $_->{Date}; join '',  @fields[2,0,1] } @$data;

use Data::Dump 'dd'; dd $mostrecent;