Like this? 
my %hash = (
   apple  => 'red',
   banana => 'yellow',
   orange => 'orange',
   lemon  => 'yellow',
);

my $value = 'yellow';

my @matching_keys = grep { $hash{$_} eq $value } keys %hash;

print("$_\n")
   foreach @matching_keys;

[download]

In reply to Re: Getting Keys of Hash from Values by ikegami
in thread Getting Keys of Hash from Values by jesuashok

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