from$6.23
ShopCreme$11.99
Swatch preview · Black Onyx
OPI
OPI - Black Onyx
Shade: Black Onyx· around $11.99Find similar shades →
Halloween pick: a classic black creme. Swatch is approximate, check the retailer swatch before buying. Price as found Oct 27, 2026; real price lives on the retailer.
Creme finish: Opaque, glossy, zero streaks. The little black dress of finishes.
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Where to buy OPI - Black Onyx
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- Our pick 🎀Amazonaround $11.99Shop
Prices and availability are set by each retailer and can change.
✦ Shade twins
Open in shade finder →Similar shades & dupes
Matched by how your eye sees color (CIEDE2000), with cheaper bottles and other brands nudged to the top.
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from$11.99
Shop✦ Stack the vibe
Complete the look
Same energy, different bottle. Perfect for an accent nail.
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🧰 Complete your kit
All accessories →Make it last
The top coats and tools that turn a 3-day mani into a 7-day one.
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💅 Good to know
OPI - Black Onyx: your questions
How long does OPI - Black Onyx last?
As a creme finish, OPI - Black Onyx lasts about 5–7 days chip-free with a base coat and a fresh layer of top coat every few days.
How many coats of OPI - Black Onyx do I need?
Two thin coats. Creme formulas are built to be opaque, so the second coat is just for evenness.
Do I need a base coat and top coat?
Yes to both: a base coat stops staining and helps grip, a glossy top coat seals in the shine.
How do I remove creme polish?
Any regular polish remover. Press a soaked cotton pad on the nail for 10 seconds, then swipe.
Is there a dupe for OPI OPI - Black Onyx?
Yes. Sally Hansen Sally Hansen - Deeply Despicable 772 is a very close color match at around $6.23. See it in “Similar shades & dupes” on this page.