Same Pantone. Three fabrics. Three different greens.

Colour complaints rarely come from the main fabric. They come from the panel, the waistband elastic or the thread — the parts nobody approved.

What the buyer brought

A paper Pantone reference, a previous set where the mesh panel read greyer than the body in daylight, and a waistband elastic that was a shade off on every piece. The previous supplier had approved one lab dip — on the body fabric only, under one light.

Root cause

• Different fibres, different dye chemistry. Nylon is dyed with acid dyes, polyester with disperse dyes at high temperature. One recipe cannot serve both, and spandex takes dye differently again — dark shades can “grin” lighter when stretched.
• Texture changes how colour reads. Mesh holes and brushed faces scatter light, so a correctly dyed panel can look lighter or greyer than the smooth body beside it. A lab dip judged as a flat swatch hides this.
• Metamerism. Two dyed fabrics can match under one light and split under another. Approval happened under one light only.
• Trims dyed to the paper, not the cloth. The elastic supplier matched the Pantone card, not the approved body fabric.
• No shade band, mixed lots. Bulk lots drifted within “acceptable” but nobody defined acceptable, and panels from different lots met in one garment.

The gates we install

1. A physical standard, not a screen. The colour target is a physical swatch the buyer holds a twin of.
2. Lab dip per material — body, mesh and elastic each submitted on the actual construction, large enough to judge texture, with instrument readings recorded at the dye house where the buyer works to an instrumental standard.
3. Named light sources. Judged under D65 daylight and the store light the buyer names — TL84 and CWF are common — so a metameric pair is caught before bulk.
4. Body standard becomes the master. Trims, thread and drawcords are matched to the approved body fabric, not to the paper card.
5. Lot planning. Each colour’s full requirement per material dyed in as few lots as possible; rolls shade-sorted on arrival.
6. Shade band per bulk lot. Approved light/dark limits held as physical swatches with the PPS.
7. Cutting by shade lot. Panels of one garment are cut from the same lot so a set does not shade inside itself.
8. Colour on the final inspection sheet under the buyer’s AQL protocol, checked against the shade band.

What to send us first

• Your physical colour standard — or two, so you keep a twin.
• The previous set that split, with a note of where it looked wrong (store, daylight, evening).
• The store lighting you sell under, if you have a retail channel.
• A list of every coloured component: body, panels, elastic, thread, drawcord, zip.

The result we will sign

An approved standard for every material in the set, a shade band per lot, trims on the PO matched to the body standard, and a PPS that shows all of it together. MOQ 150 per style per colour. Sample US$50–100 per garment piece in 7–9 working days.

What we will not promise

An exact paper-to-fabric Pantone match, or identical appearance under every light. We promise an approved visual match under the lights you name, held within a written band.

Related: stretch recovery · custom fabric minimums · fabric MOQ vs garment MOQ · fabric selector.

Other rescues: Sheer leggings in bulk · Factory switch without the pattern · Pilling and colour transfer · First wholesale account · all reconstructions.

Send your colour standard

FAQ

Why does my bra not match my legging when both were dyed to the same Pantone?

Nylon and polyester take different dye classes, mesh and brushed surfaces reflect light differently, and a match under one light can split under another. Each material needs its own approved lab dip, judged on the real construction under the lights you name.

Can you match a paper Pantone exactly on nylon-spandex?

Not exactly. The target is a visual match on the actual fabric under agreed light, approved by you, then held within a shade band per bulk lot.

What is metamerism?

Two fabrics that match under one light and differ under another, because their dye recipes absorb light differently. It is why approval under a single store light is not enough.

Are trims included in colour approval?

They should be. Elastic, thread, drawcords and zip tapes are matched to the approved body standard, not to the paper reference.