20 December 2025
Valspar Colour Match vs. DupeCoat: Which is More Accurate?
You've found your colour. Maybe it's Farrow & Ball, Little Greene, Coat, or Lick. You don't want to pay £70 a tin to put it on the walls. Two ways to get there. Walk into a B&Q and ask Valspar to mix it for you. Or use DupeCoat to match the colour to a trade paint you can have on your doorstep tomorrow.

How Valspar Colour Match works
Valspar uses a spectrophotometer at B&Q to scan your colour reference, whether that's a card, a swatch, or a chip from a wall. The machine reads the colour values and creates a one-off recipe of tints to add to a Valspar base. You walk out with a tin that didn't exist before you walked in.
On paper, this is clever. The problems show up later.
Because every mix is unique to that scan, the tin you bought last week and the tin you buy next week aren't guaranteed to be the same. If you run out mid-room, you've got a problem.
Valspar's base is formulated for the DIY market. Coverage on deeper colours often needs three or four coats. The Mumsnet and PistonHeads threads on this are easy to find. Patchy finishes, fading, and re-orders that don't match are common complaints.
And you need to physically be there. Drive to the store, queue, carry tins to the car, hope they got the scan right.
For paler colours and a single room, Valspar Colour Match can produce a reasonable finish. For darker colours, larger projects, or anything you'll want to re-order, the limitations show up fast.
How DupeCoat works
DupeCoat doesn't ask a machine to invent a new formula. We match your colour against a database of standard trade codes (NCS, RAL, and each manufacturer's own colour libraries) and tell you which existing trade paint is closest.
The trade ranges we match to:
Johnstone's Trade
Crown Trade (Clean Extreme for kitchens and bathrooms)
Dulux Trade
Dulux Heritage (Our most-recommended brand)
These are paints decorators have been using for years. The formulas are stable. The coverage is rated for two coats on most colours. If you need a second tin in six months, it'll match.
You search the colour on dupecoat.app, see the trade dupe, and order it through dupecoat.store. Next Day Paint delivers it the following day.

A worked example: Coat Pampas
Pampas is a warm off-white from Coat Paints. A 2.5L tin from Coat retails around £42. A 5L tin from a trade brand at the same colour code, ordered through dupecoat.store, costs less and covers more wall.
The Valspar way: Take a Pampas colour card to B&Q. Wait for the scan. Buy a tin of a one-off Valspar formula. Hope it covers in two coats.
The DupeCoat way: Search "Coat Pampas" on dupecoat.app. We show you the closest trade match against the same NCS code, in an established formula. Order it through dupecoat.store and it arrives the next day.
See the Coat Pampas dupe match for the exact trade alternatives currently available.
When Valspar is actually fine
If you're painting a single accent wall in a pale neutral, you've got a B&Q ten minutes away, and you don't care about re-ordering, Valspar Colour Match will probably get you there. It's the convenience option, and convenience has a place.
DupeCoat is built for everything else. Larger projects. Darker colours. Decorators working across multiple rooms. Anyone who wants the option to re-order the same paint in six months and have it match. Anyone who'd rather not drive to the DIY shop.
How to switch
Find your match. Search your designer colour on dupecoat.app. We'll show you the closest trade equivalents from Johnstone's Trade, Crown Trade, Dulux Trade, and Dulux Heritage.
Pick your finish. Matt for living spaces. Eggshell for woodwork. Clean Extreme for kitchens and bathrooms where you'll want to wipe walls down.
Order through dupecoat.store. Next Day Paint handles delivery direct to your door.
Want the deeper guide on choosing colours and building a scheme? Our Hague Blue dark academia hallway guide walks through one full room from colour choice to trade match. Same methodology applied end to end.

Frequently asked questions
- Is Valspar's in-store colour match accurate?
- It can land close, but every Valspar mix is a one-off custom formula, and the scanner reads your colour card under harsh store lighting rather than your room's natural light. That's why results vary and can look different once the paint is on the wall.
- Will a second tin of Valspar match the first?
- Not always. Because each in-store mix is custom, a top-up tin ordered later can come out slightly different. A predefined trade match uses the same formula every time, so re-orders stay consistent.
- Why do professional decorators prefer trade paint over retail colour matches?
- Retail bases like Valspar's often have lower opacity, so you may need three or four coats to cover. Trade-grade paint usually covers in two, which saves time and tins.
- How is DupeCoat different from a Valspar scan?
- DupeCoat uses predefined trade matches, a fixed formula mixed into a trade-grade paint, instead of scanning a fresh custom colour each time. You get the designer shade with consistent results and better coverage.
- Is Valspar or a DupeCoat trade match cheaper?
- Compare the cost of a finished wall, not the tin. A cheaper tin that needs four coats can work out dearer than a trade paint that covers in two.