What is the posh word for purple?

There isn't really a single "posh" word for purple, as it's a fairly straightforward color. However, depending on the context, you could use more evocative or sophisticated language like:

* Amethyst: This refers to the gemstone, which is often a purple hue.

* Lavender: This is a soft, light purple, often associated with elegance and tranquility.

* Violet: This is a deep, rich purple, often considered regal and sophisticated.

* Mauve: This is a lighter, greyish-purple, often associated with femininity and elegance.

* Lilac: This is a light, delicate purple, often associated with spring and new beginnings.

Ultimately, the best "posh" word for purple depends on the specific shade and the context in which you're using it.