Should I specify Pantone C or U?

Match your paper. If you are printing on a coated stock (glossy, matte coated, satin), specify the Coated (C) variant. If on uncoated (text paper, kraft, fluffy uncoated), specify the Uncoated (U). Specifying the wrong one tells the printer to target a different visual reference and your job will not match the guide.

Why is the same Pantone number used for both?

The number identifies the ink recipe — the pigments, not the printed appearance. Pantone publishes two physical guides (Coated and Uncoated) printed on the appropriate stock to show how that same recipe looks on each.

Is there a Pantone Matte (M) too?

Yes — Pantone Matte (M) is a third option for matte-coated stocks. It is less commonly used in everyday production but exists for matte-finish brand work.

Can I use the same CMYK values on coated and uncoated stock?

Only for rough internal mockups. Coated and uncoated stocks need separate ICC profiles and usually separate CMYK builds because dot gain, paper white, and ink holdout are different. A process build that looks acceptable on coated stock can look dull or too dark on uncoated paper.

Coated vs Uncoated Pantone Stock — Explained

Why a single Pantone number can look like two different colors depending on what paper you print it on — and what that means for your job.

One-sentence answer: The same Pantone ink absorbs into uncoated paper, which lowers chroma and softens the color. On coated stock the ink sits on the surface and stays vivid. That is why Pantone publishes two guides for the same number.

What "coated" and "uncoated" mean

Coated paper has a thin clay or polymer coating sealed onto the surface — gloss, matte, satin, dull, or silk. Ink cannot soak in; it sits on top. The result is a sharp, vibrant printed image with high contrast and saturated color.

Uncoated paper is raw fiber, sometimes calendared but not sealed. Ink absorbs into the paper, spreading slightly and scattering light. Color reads softer, slightly muted, and warmer.

What shifts between C and U

Chroma drops: uncoated versions read 5–25% less saturated, especially in deep blues, greens, and reds.
Hue can shift: some Pantones — especially yellows and oranges — shift slightly warmer on uncoated due to substrate color and absorption.
Dot gain increases: uncoated stock spreads ink dots 15–30% (vs 5–15% on coated). If your art uses tints or process builds, this matters more than the spot color.
Contrast falls: blacks look less dense, fine type slightly less crisp.

Practical implications

Brand systems should specify both

A serious brand book lists both the Coated and Uncoated Pantone for each brand color — because the brand will inevitably print on both. The Uncoated value is sometimes not a one-to-one swap. For example, a brand that requires Pantone 286 C on glossy marketing collateral might use Pantone 286 U on letterhead, or specify a deliberately different Pantone code that prints visually closer on uncoated.

Soft-proofing in design apps

In Photoshop and Illustrator, set up two soft-proof profiles — one for your coated stock (e.g. FOGRA39 for Europe, GRACoL 2013 for the US) and one for your uncoated (e.g. FOGRA47). Toggle between them to preview how your art will shift.

The two-guide rule

If you are picking a Pantone for any brand color, always confirm against both physical guides (Coated and Uncoated) — under a D50 light booth, on the actual paper you plan to use. The screen approximation misses small but real shifts.

Decision workflow for a real print job

Treat the finish choice as a production decision, not a naming detail. Before a vendor quotes or plates the job, lock these four inputs:

Final substrate: coated, uncoated, matte-coated, kraft, label stock, folding carton board, or synthetic material.
Brand target: the physical guide or signed proof the printer is expected to match.
Ink mode: dedicated Pantone spot ink, CMYK process simulation, or CMYK plus spot.
Approval tolerance: whether the job is visual-match only, ΔE-limited, or must match a prior production run.

A safe rule: if the printed piece is a brand identity asset, packaging face panel, signage, or stationery system, specify the finish in the artwork, the estimate, the purchase order, and the proof approval.

Vendor handoff language

Use explicit language so the printer does not silently substitute a process build or the wrong guide reference:

Print brand red as Pantone 186 C on coated stock. If job is moved to an uncoated substrate, do not reuse the coated CMYK fallback. Provide a new proof against the Pantone Uncoated guide or propose the nearest uncoated target for approval before production.

For CMYK-only jobs, add the profile: "Convert using GRACoL 2013 coated" or "Convert using PSO Uncoated / FOGRA47." That one sentence prevents many avoidable proof mismatches.

Approval checklist

Confirm the physical stock matches the estimate and proof.
Check the Pantone guide edition and viewing light are consistent.
Review the proof under D50 lighting, not office LED or window light.
Compare large solids and small reversed type separately.
Sign off on the actual finish target, not a screen preview.

Quick selection guide

Glossy/coated stock — magazines, brochures, glossy packaging — use Pantone C.
Uncoated stock — text paper, letterheads, novel interiors, kraft cartons — use Pantone U.
Matte-coated stock — modern matte packaging — use Pantone M if your printer references it, otherwise C as a fallback.

Both Coated and Uncoated are first-class citizens in our converters and color directory — toggle the finish to see the right reference for your substrate.

Coated vs Uncoated Pantone Stock