How Pantone color matching actually works in custom knitwear: lab dip rounds, Solid Coated codes, Delta-E tolerances, light booths and bulk approval.
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Discuss Your ProjectColor is the part of a knit program most buyers are most emotional about — and the part where the factory has the least margin for error. A sweater that arrives one shade off from your reference can make the entire bulk unsellable. This guide explains how Pantone color matching actually works in custom knitwear, what tolerances are realistic, and how to set up an approval process that lands the color you imagined.
Color is not subjective in production. It is measured, signed-off and tracked — and the buyers who treat it that way get repeatable results.
Why is colour matching harder in knitwear than in woven fabric? Because a knitted surface is three-dimensional. Loops create shadow, so the same dye reads differently at different gauges and in different structures. A colour approved on a flat swatch can look different on a ribbed cuff of the same yarn.
Should I specify TPX or TCX? TCX, where you have the choice. The cotton-based standard is closer to a textile surface than the paper-based one, so it gives the dyehouse a more achievable target. Whichever you use, name it - a Pantone number without the suffix is ambiguous.
What is a lab dip and how many rounds are normal? A lab dip is a small dyed sample submitted for approval before bulk dyeing. More than one round is normal; each round costs a fee and calendar time, which is why an unambiguous colour reference at the start is the cheapest thing a buyer can provide.
What is Delta-E and why should it be in the spec? Delta-E is a numeric measure of colour difference. Specifying an acceptable Delta-E turns colour approval from an argument into a measurement, which matters most when a colour has to match across styles or across a reorder.
Why do buyers need to agree the light source? Because a match under one light can fail under another - the effect known as metamerism. Agreeing the light booth conditions, typically D65 with a secondary source, means both sides are approving the same thing.
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A flat woven swatch and a knitted swatch dyed in the same dye bath will read differently to the eye. The reason is structure: knit loops scatter and absorb light differently than the flat warp-and-weft of a woven, so the perceived color shifts. Surface texture changes this further — a brushed mohair reads softer and lighter than a smooth fine-gauge merino dyed in the identical lot.
That is why Pantone matching for knitwear is always fiber-on-fiber: the lab dip must be done on the exact yarn that will be used in bulk, knitted to the same gauge and stitch, with the same finishing.
| Variable | Effect on perceived color | Buyer should specify |
|---|---|---|
| Fiber | Cotton, wool, acrylic absorb dye differently | Final yarn composition |
| Gauge | Loop size changes light reflection | Final GG (e.g. 7GG vs 12GG) |
| Stitch structure | Cables and ribs cast shadow | Reference stitch |
| Finishing | Brushing, washing, anti-pill alter shade | Finishing route |
| Light source | Color shifts under D65, TL84, A | Approve under all 3 |
Not every Pantone book is appropriate for knitwear. The three you will encounter:
Where possible, brief in TCX. A code like `19-1664 TCX True Red` gives the dye house a real textile target rather than a printed approximation. If you only have a Solid Coated reference, send it but flag that the match will be interpreted onto yarn.
A lab dip is a small test-dyed yarn skein produced before bulk dyeing. The dye house mixes a recipe, dyes a skein, and sends two or three options — usually a tone slightly above, on, and slightly below the target. The buyer picks the closest, comments on direction ("warmer," "less yellow," "darker by 5%"), and a second round is dyed against that feedback.
A typical lab dip cycle:
| Round | Typical time | What you get | What you do |
|---|---|---|---|
| Round 1 | 7–10 days | 2–3 options against your Pantone | Comment on direction |
| Round 2 | 5–7 days | Refined 1–2 options | Approve or fine-tune |
| Round 3 (if needed) | 5–7 days | Final corrected lab dip | Sign-off for bulk |
Most colors land in 2 rounds. Difficult shades — saturated reds, deep navies, vibrant teals, fluorescent tones — can take 3 or more. Build that into your calendar; do not assume one round is enough. For broader timeline context, see our sweater sampling lead time guide.
Professional color approval uses a measured tolerance, not just an eyeball check. Delta-E (ΔE) is the calculated distance between two colors in a uniform color space (CIELAB). Lower ΔE means closer match.
Reputable factories use a spectrophotometer (such as Datacolor or X-Rite) to measure bulk yarn against the approved standard. Ask whether your factory measures color or only assesses visually — measurement is what makes color repeatable across reorders.
Two colors that match under one light source can mismatch under another. This is called metamerism, and it is the source of most color disputes between buyer and factory.
All serious color approval is done in a standardized light booth under three illuminants:
Approve your color under all three. If it matches under D65 but shifts noticeably under TL84, the dye recipe needs adjustment before bulk. This is also why approving a lab dip from a phone photo is never sufficient — request the physical skein.
Lab dip approval is not the end. Before mass production, the factory dyes the actual bulk yarn lot and sends a bulk yarn submit (sometimes called BYS or bulk lab dip) against the approved lab dip standard. Only when the bulk lot reads within the agreed ΔE tolerance does knitting begin.
For multi-color programs, also confirm whether colors must match across styles within the collection — a navy on a polo should read the same as the navy on a crew neck. This requires shared dye lots or strict lot-to-lot tolerance, and should be flagged in the tech pack.
Before the first lab dip:
Licheng Knitwear's color matching and Pantone lab dip capability covers fiber-correct lab dips, spectrophotometer measurement to ΔE ≤ 1.5, three-illuminant booth approval, and bulk yarn submits before knitting. For deeper background on the approval workflow, also see our knitwear color approval guide and knitwear dyeing methods explainer.
Request a quote with your Pantone references and we will run the lab dip program against your tolerance, on the exact yarn you will use in bulk.
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If you're planning a real project around any of the points above, we'd be glad to take a quick look. Send a short brief and we'll come back within one business day with a practical direction, MOQ + lead time estimate, and a sample plan if it makes sense.
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You supply a Pantone (TCX/TPX) reference; the mill dyes a lab dip, we send it for approval, then dye the bulk yarn to the approved standard. Stock colours skip the dyeing step.
A lab dip is a small dyed yarn sample for colour sign-off before bulk. It prevents costly colour mismatches on the full order.
Not the MOQ - a custom-dyed colour still starts at 30 pieces per colour, with a small-lot dyeing surcharge below the mill's 100-300-piece dye lot, and the lab dip adds 7-15 days. Designing around in-stock colours keeps cost and lead time lowest.
We focus on men's sweaters, cardigans, knit jackets, jacquard knitwear and private label knitwear. We support B2B buyers with OEM/ODM development, sampling and bulk production planning.
Ready sample styles and selected custom programs can support lower-risk trials before larger seasonal orders.
Yes. Brands, including new labels preparing a first collection, can pay for a sample and see it before placing a production order. Two routes: a ready sample of a published style at USD 60 per piece in about 7 days, or a development sample from your tech pack at USD 150 per style, covering yarn sourcing, knit programming, one prototype and one revision round, in 15-25 days. Cashmere and mohair styles are quoted individually and shipping is charged at cost. Production starts only after you approve the physical sample, at our minimum of 30 pieces per colour with sizes mixed inside the 30. A sample does not commit you to a production run; we do not make garments for personal use.
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