The best nail polish colors, and how to pick one

Start with your undertone, not with the trend

Nail polish sits a few millimeters from your skin, which means the shade is always read against it. The same bottle genuinely looks different on two hands, and the variable is undertone.

The quickest test: look at the veins on the inside of your wrist in daylight. Blue or purple suggests a cool undertone. Green or olive suggests a warm one. If you cannot tell, you are probably neutral, which is the easiest case — almost everything works.

Cool undertones are flattered by blue-based reds, true berry and plum, cool taupes, and pure brilliant whites. Orange-based corals and warm yellow-browns tend to read muddy.

Warm undertones are flattered by coral, brick and tomato reds, peach, bronze, warm nudes and olive. Icy pastels and blue-based purples tend to look washed out.

Everybody can wear a true red that is neither notably orange nor notably blue, which is why a classic red is the single most useful bottle on the shelf. It is also the shade most brands build their reputation on.

Depth changes how much saturation a shade can carry, which is a separate axis from undertone. The two depth-specific pages are polish colors for pale skin and polish colors for dark skin — including why a nude has to be matched to your own depth rather than picked by the word on the label.

Which shade for which situation

Undertone narrows the wall. What you are actually doing narrows it again — and this is the table most shade guides skip.

The last two rows are the trade-off nobody mentions. A dark, high-contrast shade shows every millimeter of regrowth and every chip, so a manicure that lasts physically for ten days looks untidy by day five. A nude close to your own nail color can be chipped and growing out and nobody notices. If you want the longest-looking manicure rather than the longest-lasting one, buy a nude.

Which colors stain nails, and how to stop it

Yellow-stained nails after a run of dark polish is one of the most common complaints in this category, and it is entirely preventable.

Staining happens when pigment comes into direct contact with the bare nail plate. The plate is slightly porous, the pigment migrates in, and no amount of scrubbing gets it out — you have to grow it out. The worst offenders are the ones with the most pigment load: dark reds, blues, purples and anything heavily saturated.

The fix is a base coat, every time, no exceptions. Any base coat creates a barrier between the pigment and the plate. This is the single highest-return minute in a manicure, and the step people drop first — the full argument is in the base coat roundup. If the formula itself is what you are shopping on rather than the shade, the best non-toxic nail polish compares what each clean brand publishes.

If staining has already happened, there is no quick fix. Give the nail a break from dark shades, oil daily, and wait — fingernails grow at roughly 3.5 mm a month, so a stained nail takes about three months to grow out entirely. Wearing a sheer or nude in the meantime hides it.

Finish matters as much as color

Two bottles of the same shade in different finishes behave completely differently on the nail, and this is where most disappointing purchases come from.

• Cream. Fully opaque, no shimmer. The most forgiving on an uneven nail surface and the most demanding on application — every brush stroke shows if you flood the cuticle. Two coats.
• Sheer / jelly. Translucent. Hides a wobbly cuticle line and an uneven free edge better than anything else, which makes it the right pick for a beginner. It magnifies surface texture and ridges, though, so it is wrong for a heavily ridged nail.
• Shimmer and metallic. The most forgiving of all on application, because the reflective particles break up any streaking. The hardest to remove cleanly — glitter particularly, which needs a soak rather than a wipe.
• Matte. Shows every fingerprint and dust speck, and needs a matte top coat rather than a glossy one. Looks modern for about three days.

If your nail surface is ridged, a cream finish over a ridge-filling base is the combination that works. If your application is the problem, a sheer finish forgives more than any technique improvement will in the first month.

Shade range is a specification worth comparing

Once you know the shade family you want, the question becomes which system to buy it in — because a bottle of color is only half a product. The long-wear systems on this site are complete systems with their own base and top coats, and buying into one means buying its routine.

Both of the lamp-free long-wear systems on this site score 9 out of 10 on shade range in our rubric, which is the highest in the category, and both publish a wear claim: up to 15 days for one with a mid-week top coat refresh, up to 11 days for the other. The drugstore route has the widest physical availability and publishes no wear figure in days at all.

The formula-level comparison — which of these actually resists chipping, and which brush is easier to control — is in the nail polish roundup and the brand comparison. If your hands are pale, the undertone question is worked through in detail in the best nail polish colors for pale skin.

If you only buy three shades

This is the practical answer to "which colors should I own", and it is deliberately short.

1. A true red. Neither notably orange nor notably blue. Works on every undertone, works at every length, reads as deliberate in every setting. If you own one polish, own this.
2. A sheer milky pink. The most forgiving shade in existence on application, and the one that reads as groomed rather than done. Wearable anywhere, hides an uneven edge, and chips invisibly.
3. A mid-tone neutral in your undertone. A cool taupe or a warm nude depending on the wrist test. This is the shade that goes with everything you own and does not need to be perfect to look good.

Add a fourth only when you know what it is for. Seasonal shades, the one dramatic color you wear twice a year, and anything heavily glittery are the bottles that end up thick and unusable at the back of the drawer — recoverable, as it happens, which is covered in fixing thick nail polish.