It is a lovely daylily, but judging from the pictures I wouldn't call it 'buff' which is generally used to mean pale beige (at least over here), this colour is MUCH prettier than buff!
I think that sometimes that is why it is difficult to choose daylilies as what is 'bright pink' to one person, and registered as such, would be described as pale pink or soft pink by others. I'm thinking of ones like Siloam Double Classic, for example, registered as Bright Pink but it isn't a shade that I would ever call 'bright' pink, rather more of a pastel pink or pale pink and there are others where I read the description and then look at the pictures and they aren't the colour I expect at all.
Not a criticism, just speculation/musing!