Why the same color comes back different
A brand sends a screen color code for its signature dusty rose. The lab dip arrives looking muddy. The brand approves the second dip from a photo, and bulk arrives slightly pinker than both. Nobody did anything obviously wrong. The reference was a screen color, the dip was judged on a phone, and bulk came from a new dye lot with no written tolerance.
Color matching works when three things are fixed: what the reference is, how the result is judged, and how much difference is acceptable. This guide covers each.
Choosing a color reference
| Reference | Strengths | Limits |
|---|---|---|
| Pantone references (textile color system) | Widely understood; physical swatch books for textiles exist | A swatch on one material does not look identical on every fabric |
| Physical swatch of your own | Shows exactly what you want | Must be large enough, clean, and not faded; keep a matching piece |
| Earlier approved sample | Best for reorders and range extensions | The sample can fade or soil over time; store it carefully |
| Screen color code (hex or RGB) | Easy to send | Screens vary; not a reliable reference for dyeing |
A physical reference is always better than a digital one. If you only have a screen color, ask for a few lab dips around it and choose the one you like in person; that dip then becomes the reference.
What a lab dip is
A lab dip is a small piece of the bulk fabric dyed to your reference in a lab, usually offered in two or three slightly different options. It is the place to get the color right before committing a dye lot. The dip must be on the same fabric as bulk, because each fiber takes dye differently: the same dye recipe gives different results on cotton, viscose, modal and polyester, and a knit looks different from a woven even in the same fiber. See the sampling guide for how dips fit into the sample sequence.
Judging color properly
- Use consistent light. Daylight-equivalent light is common for approval; a light box with several sources is better.
- Check more than one light. Colors can match in daylight and differ under shop or warm home lighting. This effect, metamerism, is a common cause of complaints.
- Compare side by side. Put the dip next to the reference on a neutral background, not from memory.
- Use the same orientation. Fabric can look different depending on the direction you view it, especially satin and some knits.
- Judge at a sensible scale. A small dip looks different from a full hijab; ask for a larger piece for important colors.
- Give directional comments. "Slightly lighter and less yellow" helps the dye house; "not right" does not.
Dye lots and shade tolerance
Bulk fabric is dyed in lots. Within one lot, shade is close. Between lots, even dyed to the same reference, small differences are normal. Two things manage this. First, a written shade tolerance on the spec sheet, describing how much difference from the approved dip is acceptable; some programs use instrumental color measurement for this, others a visual standard agreed between buyer and workshop. Second, shade banding at packing: pieces from different lots are packed and labeled separately, so a store does not display two slightly different navies on the same shelf.
Reorders are new lots. If a color is core to your range, keep the approved dip and a bulk piece from the first order, and send both as references for the reorder.
Matching across fabrics and styles
Customers often want an underscarf that matches a chiffon hijab, or a jersey instant hijab that matches a khimar in crepe. Matching across fabrics is harder than matching within one, because different fibers and constructions take dye differently and reflect light differently. A satin will always look richer than a matte jersey in the same dye. Plan cross-fabric colors together: lab dips on both fabrics, approved side by side, with the closer of the two as the lead reference. If a perfect match is not possible, agree what "matching" means for your customers, such as close enough to be worn together.
Black, white and the neutrals
Neutrals look simple and cause many complaints. Blacks vary from blue-black to brown-black, and a range with two blacks from different workshops or fabrics shows it quickly. Whites and off-whites vary in warmth and in optical brightness. Navy can lean purple or green under different lights. Treat core neutrals as colors that need a reference and a lab dip, not as "standard". Color names cause trouble too: one workshop's "mocha" is another's "coffee", and "nude" covers a wide range of shades. Give every color in the range your own name and code, tied to its reference, and use those on the spec sheet, the lab dip label, the bag sticker and the carton mark so nothing depends on a supplier's naming. The hijab colors guide discusses building a core palette.
Colorfastness is part of color
A color that matches on approval but fades or bleeds after a few washes is not a match for long. Colorfastness to washing, rubbing and light are common checks, especially for dark and bright shades and for printed pieces. Plan them on the spec sheet. See shrinkage and colorfastness.
Minimums and color
Custom colors usually carry higher minimums than stock colors because each one is a dye lot. Stock colors are often close enough for core neutrals, saving time and minimums. For signature shades, custom is worth it. A practical split for many ranges is stock shades for blacks, navies and greys that customers treat as basics, and custom colors for the two or three seasonal shades that define a collection. Concentrating custom colors this way keeps each dye lot deep enough to meet its minimum and makes reorders simpler. The reference ranges are on MOQ and lead time and are confirmed in writing for each program.
What to put in writing
- The color reference for each color: swatch, Pantone reference or approved sample.
- The approved lab dip per fabric, signed and dated.
- The light source for approval.
- Shade tolerance between lots and how it is judged.
- Shade banding at packing.
- Colorfastness checks required.
When your palette is ready, send references and fabrics through the sample request form.