How to Keep Signature Brand Colours Exact in AI Images

Quick answer: AI can't read hex codes perfectly, so combine three things: the hex code, a precise colour description ('warm burnt orange, like terracotta'), and a reference image with the real colour. Keep light neutral so it doesn't shift colour, then check and correct the final image in an editor against your hex value.

Why colours shift

Light colour, shadows and the model's own preferences change how a colour renders. Warm sunset light turns a blue garment teal; a red can turn pink in soft light.

The method

1. Put the hex code and a clear colour description in the prompt.
2. Attach a reference image with the true colour.
3. Use neutral daylight for colour-critical shots.
4. Avoid strong coloured light in the scene.
5. Check the result with an eyedropper against your hex.
6. Correct small shifts in editing.

Prompt to copy

Product image of the bag from the reference in its exact brand colour #E35A1A — a warm burnt orange like terracotta. Neutral daylight, white background, no colour cast. Keep the colour identical to the reference.

Common mistakes

• Hex code with no description.
• Coloured light in colour-critical images.
• No final check.

Where to do this in the Lab

• free Palette-to-Prompt tool
• Creative Workspace — pay as you go, no subscription.
• AI Consistency workshop — learn how to keep the same face and the same product in every shot.

Related

• Exact brand colours in AI images
• How to build an AI brand style guide

FAQ

Can AI use hex codes?

It reads them as hints; add a description and a reference.

Why does my colour shift?

Light colour and shadows change it.

How do I check the colour?

Use an eyedropper in an editor against your hex value.

Is there a free tool?

Yes, the free Palette-to-Prompt tool.

Next step: learn the whole workflow in a recorded workshop (see all workshops) or save with a bundle.