The Subtle Science of Colour: How Paper and Finishing Affect the Final Look
If you’ve ever approved a vibrant proof only to see your final print job come out a little duller—or just off—you’re not alone. One of the most common (and frustrating) surprises in print production is how much the same ink can shift in appearance depending on what kind of paper or finish you use.
As a designer or print buyer, understanding these variables is key to making informed decisions, setting accurate expectations, and avoiding costly reprints.
Paper Isn’t Neutral: How Stocks Influence Ink Colour
1. Porosity = Ink Absorption = Colour Shift
Let’s talk about how paper absorbs ink. Uncoated and porous stocks (untreated paper, kraft paper, recycled sheets, and corrugated cardboard) suck up more ink into the fibres. This causes dot gain, where the ink spreads slightly beyond where it was placed—making colours appear darker, muddier, and less crisp than they look on your screen.
On the other hand, coated stocks (like gloss or silk) have a smoother, sealed surface. The ink stays closer to the top, retaining sharper details and more vibrant, punchy colours.
Designer Tip: If colour precision is critical—especially with brand colours—lean toward coated stocks.
The Colour of the Paper Affects the Colour of the Ink
It sounds obvious, but it’s often overlooked: printing on a creamy or off-white paper will shift every ink colour warmer and duller. That perfect pastel or grey you designed? It’ll take on the tone of the underlying stock. The paper is your base, and your ink is transparent—think layers, not blocks.
Print Buyer Insight: If you're switching from a bright white coated sheet to a natural uncoated one, ask for a hard proof to evaluate real-world colour changes.
Finishing Touches That Shift Perception
1. UV Coating
UV coatings are great for adding high gloss and protection—but they also change how light reflects off the surface. This extra shine makes colours look richer and deeper, but it can also cause glare and make some colours (like blues and blacks) read darker than intended.
2. Lamination (Gloss vs. Matte)
Laminates add a layer of film over your print. A gloss laminate will boost contrast and make colours pop, while a matte laminate gives a smooth, elegant feel but slightly mutes colour vibrancy. Again, it’s all about how light interacts with the finish.
Design Consideration: If your piece uses subtle gradients or fine typography, test how it looks with both finishes—some details can vanish under the wrong treatment.
How to Protect Your Print Investment
Request a press proof on the actual paper and finish when colour accuracy is critical.
Communicate clearly with your print provider about stock and finish plans up front—these choices should guide colour decisions early, not at the end of the process.
Wrapping Up
Designing for print means designing for variables. The same CMYK values can look wildly different depending on paper stock and finishing. But with a little planning, testing, and collaboration with your print partners, you can get the results you want.
