# Colour shift

Colour shift is a failure where a garment in a generated or retouched image differs in hue, saturation or lightness from the real product. In a 2023 Coresight Research survey, US apparel retailers named colour as the second most common reason for returns, after size and fit.

- URL: https://humblebob.com/definitions/color-shift
- Publisher: HUMBLEBOB (https://humblebob.com)
- Updated: 2026-09-29

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> Colour shift is a failure where a garment in a generated or retouched image differs in hue, saturation or lightness from the real product. In a 2023 Coresight Research survey, US apparel retailers named colour as the second most common reason for returns, after size and fit.

Colour shift is the failure customers notice after delivery, when the parcel is open and the sweater is a different red. In [Coresight Research's 2023 survey](https://coresight.com/research/the-true-cost-of-apparel-returns-alarming-return-rates-require-loss-minimization-solutions/) of US apparel retailers, colour was the second most common return reason, named by 16% of respondents, after size and fit at 53%.

![Top-down photo of a deep red lambswool crew-neck sweater laid flat on off-white paper.](https://humblebob-media.humblebob.workers.dev/humblebob-website/content/def-color-reference-1536-035dd55333.webp)

*The reference for this page's example: a red sweater photographed flat under neutral light, the colour the customer will find in the parcel. (AI-generated image)*
## Common causes

- **Colour from a description instead of a reference image.** "Red" covers many shades; only the product image shows which one is meant.
- **A cast in the reference.** A packshot shot under warm light passes its cast to every image made from it.
- **Environment and light.** A warm location or a coloured background pulls the garment's colour with it.
- **Neighbouring garments.** A strong colour next to the product bleeds into it. See [reference confusion](https://humblebob.com/definitions/reference-confusion).
- **Difficult colours**: saturated reds, navy next to black, off-whites, neon, and white on white.

## How to catch it in review

Compare with a colour-checked reference on a calibrated screen, and measure when a colour looks off: sample a flat, evenly lit area of fabric in both images and compare with [Delta E](https://humblebob.com/definitions/delta-e). Agree the threshold before production, not during review.

![The same sweater laid flat, now in a lighter, more orange red than the reference.](https://humblebob-media.humblebob.workers.dev/humblebob-website/content/def-color-failure-1536-2f9dcbe2a8.webp)

*A staged failure made from the reference above: the same sweater with its red turned lighter and more orange, a difference a colour-checked comparison or a Delta E reading catches. (AI-generated image)*
## How to prevent it

Take colour only from reference images, check those references against the physical sample, and make colour matching a named step for categories and channels where it has caused rejections before.

Part of [garment fidelity](https://humblebob.com/definitions/garment-fidelity).

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About the publisher: HUMBLEBOB is a production partner for fashion imagery. We read your brand, sort your briefing, make the assets, deliver them ready for your channels and put what we learn into the next drop.