Exactly the wrong shade of pink

And for all the richest and most successful merchants, life inevitably became rather dull and niggly, and they began to imagine that this was therefore the fault of the worlds they'd settled on - none of them was entirely satisfactory: either the climate wasn't quite right in the later part of the afternoon, or the day was half an hour too long, or the sea was exactly the wrong shade of pink.

-- the Hitchhiker’s Guide to the Galaxy