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October goes dark, moody, and unapologetically spooky — blacks, deep purples, and jack-o-lantern energy.
My top pick: A deep plum-black is the October nail — dark enough for Halloween, sophisticated enough for every other day.

1. Deep Plum Solid

Near-black plum that captures October’s mood perfectly. Shop deep plum nail polish on Amazon →
2. Glossy Black Statement

Full glossy black for peak October energy. Shop black gel nail polish on Amazon →
3. Halloween Accent Nails

Dark nails with spiders, bats, or ghosts on the accent nails. Shop halloween nail art stickers on Amazon →
4. Dark Purple Chrome

Purple chrome for an otherworldly October shimmer. Shop dark purple chrome nail powder on Amazon →
5. Blood Red Vampy

A deep, vampy blood red for classic Halloween. Shop blood red nail polish on Amazon →
6. Glow-in-the-Dark Accent

Dark nails with one glow-in-the-dark accent per hand — trick-or-treat. Shop glow in dark nail polish on Amazon →
7. Spider Web Ring Finger

Dark nails with a spider web design on the ring fingers. Shop spider web nail stamp plate on Amazon →
8. Matte Black Coffin

Matte black on coffin nails — the Halloween standard. Shop matte black nail polish on Amazon →
9. Dark Forest Green

Near-black forest green for a non-traditional October shade. Shop dark forest green nail polish on Amazon →
10. Orange-and-Black Alternating

Alternating orange and black nails — the classic Halloween combo. Shop orange nail polish halloween on Amazon →
11. Smoky Grey Cat Eye

A magnetic grey with a ghostly cat-eye stripe — haunted elegance. Shop grey cat eye magnetic nail polish on Amazon →
12. Black Chrome Mirror

Full black chrome for a mirror-dark finish — midnight metal. Shop black chrome nail powder on Amazon →
13. Candy Corn Ombre

A gradient from yellow to orange to white on each nail — candy-corn nails. Shop candy corn nail art stickers on Amazon →
The bottom line
Deep plum is October’s defining shade. Matte black coffin nails are the Halloween standard, and glow-in-the-dark accents own the trick-or-treat night.