When randomness helps, and when it wastes an afternoon
Randomness is not a substitute for a brief. It is what you reach for before there is one, or when the one you have has stopped producing anything you have not already done. The distinction matters: a generated palette in front of a locked brand is simply time spent on a thing you will throw away.
Before the brief exists
With no client, no guideline and no reference, the blank canvas is the problem rather than the starting point. Sixteen million hex values and no constraints invites the longest possible loop: pick, doubt, pick again. A generated theme removes the selection step entirely — you are no longer choosing a colour, you are solving for one, and solving is something people finish.
When your default set keeps winning
Every designer has one: warm neutrals, a desaturated blue, maybe a single confident accent. It looks right in every deck you make, which is exactly the issue — it makes the work interchangeable. A generated set lands outside that habit. Sometimes badly; occasionally somewhere you would never have arrived at on purpose. The cost of a bad one is one more press, which is the whole economic argument for a button rather than a meeting.
When it is the wrong tool: anything with a locked brand, a regulated industry palette, or a direction the client has already approved. Also the final polish — once type and spacing are set, swapping the whole palette is not exploration, it is rework.
