Direct answer: A phone or monitor emits light, while a printed surface reflects light. Their colour ranges, brightness and viewing conditions differ. The same artwork can therefore look different across screens and on different inks and substrates.
Engineering Principles and Components
| Topic | Function | Practical check |
|---|---|---|
| Screen brightness | A bright screen can make an image look more vivid than a print. | Use a consistent viewing setup and avoid judging from brightness alone. |
| Colour gamut | Some screen colours are outside the printer and ink range. | Discuss achievable output before promising an exact match. |
| Substrate | Paper, fabric, coating and base colour affect reflected colour. | Proof on the actual material. |
| Viewing light | Daylight and indoor lighting can change appearance. | Agree the inspection conditions with the customer. |
Practical Shop Checklist
- Ask for the original artwork and any physical brand reference.
- Confirm the printer, ink, media and appropriate colour profile.
- Produce a physical proof on the intended substrate.
- Document customer approval and any agreed colour tolerance.
Related Engineering Guides
Start with how a piezo printhead works and digital inkjet machine anatomy. For a machine-specific question, share your model on our contact page.
Frequently Asked Questions
Why is my print darker than my phone?
Display brightness, colour conversion, ink and media can all contribute; compare a controlled screen with a physical proof.
Can a printer reproduce every phone-screen colour?
No. Some colours are outside a particular print system’s achievable gamut.
Does changing the paper change colour?
Yes. Base colour, finish and coating can affect the printed appearance.
Do room lights matter?
Yes. Printed colours can look different under different illumination.
Is an ICC profile enough on its own?
No. The correct workflow, stable printer condition, media and proofing are also important.
How can a client approve brand colour?
Use a physical proof on the agreed substrate under agreed lighting, and record the approval.
Should I trust a screenshot as the final reference?
A screenshot can be useful for discussion, but it should not replace an approved physical proof for colour-critical work.
