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Recommend Colour Schemes That Fit Your Brand, Not the Same AI Purple Gradient Everyone Else Ships

For the palette request that keeps coming back as indigo, violet, neon glow and a gradient hero, the look people now scroll past as generic AI. Bans those defaults unless your brief justifies them, maps what your competitors already own, then gives three distinct directions with a hex and a job for every colour, contrast checks, and a negative-constraints line that keeps other AI tools on palette. Run our UX audit prompt first if you haven't actually looked at what competitors ship yet, then lock the palette in early with our feature and interface brainstorming prompt so visuals and concepts move together.

Recommend Colour Schemes That Fit Your Brand, Not the Same AI Purple Gradient Everyone Else Ships
Chat promptDesignChatGPTClaudeGemini
The Prompt
You are a senior brand and UI designer who picks colour systems for real products, and you know exactly why asking an AI to 'give me a colour palette' goes wrong. Left unconstrained, you drift to the median of every Tailwind tutorial and gradient-heavy SaaS shot: indigo and violet, neon purple, glowing orbs, gradients, dark mode. Designers call it the AI purple problem, and visitors read it as generic AI sauce before they read a single word. Your job is to give me a colour scheme that looks chosen for my brand on purpose, not one that could be dropped onto any AI landing page.

HARD RULES:
1. Banned by default: indigo, violet or purple as the primary or accent, neon or glowing colours, gradients, glow effects, and dark mode as the default theme. You may only use one of these if I explicitly ask for it, or if you can tie it to something specific in my brief and say why. 'It looks modern' or 'it feels techy' is not a reason.
2. Every colour gets an exact hex code and a job (background, surface, text, border, primary action, accent, success, warning, error). No mood words like 'calming blue' without a hex beside them, and no colour without a role.
3. Every choice must trace back to my brief: my audience, my category, what my competitors look like, a word I used about the brand. If a palette would fit any random startup equally well, it is too generic. Throw it out.
4. Check contrast. For each text/background pair and the primary button, state the WCAG contrast ratio and whether it passes AA for normal text (4.5:1) and large text (3:1). If you are not certain of a ratio, say so and tell me to verify it in a contrast checker instead of guessing.
5. Do not flatter me. If my existing colours or my own idea are the generic option, say so plainly.

STEP 0 - BRIEF. Ask these in one batch, then STOP and wait:
- What is the product or brand, who is it for, and what should someone feel in the first three seconds? Give me 3 adjectives it should feel and 1 it must never feel.
- Where will these colours live: a web app UI, a marketing site, a logo and brand kit, a slide deck, or a series of illustrations or AI images?
- Name 2-3 direct competitors or lookalikes. What colours do they use?
- Anything fixed already: a logo colour, a colour I must keep, a colour I hate, cultural or industry associations to avoid?
- Light mode, dark mode or both?
If I say 'just make it look good', push back once and make me answer at least the adjectives and competitors questions.

STEP 1 - SAMENESS MAP. One short table: Competitor | Dominant colours | What it signals. Then one line naming the colour territory that is overcrowded in my category (including the AI purple default, if it applies) and the territory that is still open.

STEP 2 - THREE DIRECTIONS. Give me 3 genuinely different palette directions, not three shades of the same idea. At least one must use warmer or less expected tones (amber, coral, rose, terracotta, ochre, sage, ink) instead of the blue-to-purple SaaS range. For each direction:
- NAME and a one-line rationale tied to my brief
- A table: Role | Hex | Colour name | Contrast note
- A DOMINANT / SECONDARY / ACCENT split (roughly 60/30/10) so I know how much of each to use
- WHY IT IS NOT GENERIC: one line naming the default it avoids
- RISK: the one way this direction could go wrong

STEP 3 - RECOMMENDED. Pick a single direction and say why it beat the other two for my audience and use case. Then expand it into a usable system:
- A tint and shade ramp for the primary and the neutral (50 to 900, a hex for each step)
- Semantic colours (success, warning, error, info) that sit with the palette instead of stock green, yellow and red
- A dark mode mapping, only if I asked for one
- 3 DO and 3 DON'T lines, for example 'DON'T put the accent on large surfaces' or 'DON'T add a gradient to make it feel premium'

STEP 4 - HAND-OFF. Output the recommended palette as:
- CSS custom properties
- A Tailwind-style colour token block
- A one-line NEGATIVE CONSTRAINTS string I can paste into any other AI tool so it stops drifting back to its defaults, for example: 'No purple. No neon. No gradients. No glow. Flat colours only: #... #... #...'
- If I am making a series of images: one image-generator style line with the hex codes plus 'flat colours, no gradients, no textures', so every image in the series stays on the same palette instead of drifting into its own lighting and colour interpretation.

MY BRIEF
Product or brand: [DESCRIBE]
Audience: [WHO]
3 adjectives it should feel / 1 it must never feel: [LIST]
Where the colours will be used: [UI / MARKETING SITE / BRAND KIT / DECK / IMAGE SERIES]
Competitors and their colours: [LIST, OR NOT SURE]
Fixed colours, colours I hate, things to avoid: [LIST, OR NONE]
Light, dark or both: [CHOOSE]

Start at Step 0. Ask your questions, then wait.
Open directly inChatGPTClaudeGemini

How to use this chat prompt

Paste it directly into a new chat, replace anything in [BRACKETS] with your context, and send. Re-use it whenever the task comes up, or save it as a text-expander snippet.

Example output

After Step 0: a bookkeeping web app for independent bakeries, light mode, all three competitors in blue or purple.

Plain ChatGPT answer

Here is a modern palette: Primary #6366F1 (indigo), Secondary #8B5CF6 (violet), Accent #EC4899 (pink).

Use a dark #0F172A background with a subtle gradient on the hero for a sleek, innovative feel.

These colours convey trust, creativity and innovation.

With this prompt

SAMENESS MAP: 3 of 3 competitors sit in blue or violet. Open territory: warm, bakery-adjacent neutrals.

DIRECTION 2, PROOFING DRAWER: Background #FBF6EE | Text #2B2320 | Primary #B4532A | Accent #7A8B5C

CONTRAST: #2B2320 on #FBF6EE about 14.3:1, passes AA. White on #B4532A about 5.0:1, passes AA.

WHY IT IS NOT GENERIC: skips the indigo default every competitor already owns.

RECOMMENDED: Direction 2, it reads as craft and careful money, not another fintech dashboard.

NEGATIVE CONSTRAINTS: No purple. No neon. No gradients. Flat colours only: #FBF6EE #2B2320 #B4532A #7A8B5C

FAQ

Frequently asked questions

Why does AI keep giving me purple gradient colour palettes?

An open-ended 'give me a palette' request gets the most common look the model has seen, and default indigo and violet ramps plus gradient-heavy SaaS designs are everywhere online. This prompt bans purple, neon, glow, gradients and default dark mode unless your brief justifies them, and makes every colour trace back to your audience, category or competitors.

Can I still use purple if it genuinely fits my brand?

Yes. The ban is a default, not a rule against the colour. Ask for it, or give a brief where it clearly belongs, and the prompt will use it, but it has to say why in terms of your brand. 'It looks modern' does not count.

Can I trust the contrast ratios it gives me?

Treat them as a first pass. The prompt states a WCAG ratio and an AA pass or fail for every text pair and the primary button, and it is told to flag any ratio it is unsure of. Before you ship, check the final pairs in a contrast checker, since a model can still get the math wrong.

How do I keep the same palette across a series of AI images?

Answer 'image series' in Step 0. The hand-off then includes one line with exact hex codes plus 'flat colours, no gradients, no textures' to paste into your image tool every time. Exact hex codes and explicit exclusions hold a palette much better than mood words like 'muted autumn'.

How do I know which colours my competitors already own?

Step 1 builds a quick sameness map from the competitors you name. For a deeper look at how they present themselves beyond colour, run a competitor UX audit that ends in design decisions, not a spreadsheet nobody opens again, then bring its findings back here as part of your brief.

Keep going

What's next

Prompt

Run a Competitor UX Audit That Ends in Design Decisions, Not a Spreadsheet Nobody Opens Again

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