Help me find this Porsche colour and name. I'm losing sleep

Please bear with me .

There's this old Porsche colour , like a light cream grey .
I'm sure it's called something like " old man of Atlantis grey" or " old man of loch lahaar grey" , " old man of Bermuda " you get the idea .
It's some such name , it's killing me . I think it has another normal name too but I DESPERATELY need to find out the longer more amusing title .
Any ideas ? It's definitely "old man " of something grey

Help , air cooled and confused