General:
* Violet
* Lavender
* Lilac
* Amethyst
* Royal
* Majestic
* Rich
* Deep
* Mysterious
* Elegant
* Luxurious
Color Nuances:
* Light: Lavender, lilac, pale purple, periwinkle
* Medium: Mauve, violet, amethyst, orchid
* Dark: Indigo, plum, eggplant, grape
Sensory:
* Visual: Bright, vibrant, shimmering, iridescent, hazy
* Emotional: Soothing, peaceful, calming, regal, spiritual, nostalgic
Figurative:
* Royal: Regal, sovereign, imperial, princely
* Mysterious: Enigmatic, shadowy, twilight, magical
* Nature: Flowery, fragrant, sweet, delicate, velvety
Literary:
* Romantic: Passionate, romantic, alluring, dreamy
* Spiritual: Mystical, ethereal, transcendent, celestial
* Dark: Gothic, brooding, melancholic, somber
Other:
* Technical: Ultraviolet, magenta, fuchsia
* Informal: Purpley, purplish, lavender-ish
The best words to use depend on the context and the specific shade of purple you're describing.