When people talk about “vintage” or “heritage” colours – what do they mean? I think it’s usually to do with a muted, soft tone to the colours, which might be because a once-bright colour faded with age, or because the pigments used in whatever times qualify as “vintage” may not have been as bold as some used today.
Thus I make a distinction between jewellery made with “vintage buttons” – anything that comes to me secondhand, and appears to be ten years old or more (sometimes a lot more), I usually class in this category – and “vintage colours”, which might be new buttons, just with a softer tone.
Then again, some buttons may be both at once. And some of my jewellery might be made with a mixture of differently-aged buttons. If things look good together, I don’t usually try to segregate them by age. So in my latest button earring collection, you’ll find new buttons alongside older ones, but the colours are themed according to a vintage palette.