AI / Design Communication & Image Prompting

Color Scheme with Reasons

Not hex codes — a palette you can derive and adjust

I need a color scheme for [product/page], but I don't want to just receive a few hex codes. Give me a scheme I can derive: 1) First rank the goals the colors must serve (readability, mood, brand recognition) and explain the ranking; 2) Explain why the primary color is that hue, and on what basis; 3) Give the logic of the neutral scale — how much lightness separates background, card, divider, and secondary text; 4) Set a usage quota for the accent color: at most how many appearances per screen, and only on which elements; 5) Give the adjustment rules for switching to dark mode. Do not use unactionable terms like 'premium gray'.

How to use

Fill in the goal ranking yourself before you ask; otherwise the hue justification will drift toward whatever looks nice.

Good for

When you have to explain in review why the color is this color, not just show a palette — that needs goal ranking, a hue rationale, and a usage quota delivered together.
When the product is extending to dark mode or multiple brand skins — you need derivable rules (neutral scale, accent quota), not a fixed set of hex codes.

Not for

You just want to eyeball a few color options — you need images, not reasoning; a palette tool is faster.
The brand primary is locked by the identity system and cannot change — only the neutrals and the accent quota are adjustable; asking it to re-pick the primary is wasted effort.

Example

Input

A B2B analytics dashboard users stare at for 8 hours a day; brand blue #1F5AE0 is fixed, and a dark mode has to be added

What you get

Ranks the goals first: long-session legibility over status-color recognizability, which in turn outranks brand recognition. Keeps the brand blue but notes it must lighten about 12% on dark grounds to reach contrast. Gives a four-step neutral scale with fixed lightness gaps for background, card, divider, and secondary text, and a quota of three accent appearances per screen, only on the primary action and error alerts. Dark-mode rules are concrete: no pure black, and hierarchy lifted by lightness rather than shadow.

Common mistakes

Asking for 'a set of premium hex codes' outright — you get five values with no reasoning and still cannot color the next page.
Asking it to satisfy readability, brand feel, youthfulness, and festive mood at once — with no ranking, every answer ends up half-satisfying each.

Try tweaking it like this

Replace 'explain why this hue' with 'give two candidate hues and the cost of each' — you move from accepting an answer to making a defensible choice.
Add 'give the fallback for when accessibility contrast is not met' — low-vision and low-contrast cases have a plan, so review does not stall there.