Limited Colour Challenge Generator
Generates a colour-restriction challenge — a deliberate constraint to work within — distinct from the site's colour-palette generator, which simply hands you a palette rather than a rule to follow.
What this generator does
Restricts the palette rather than the subject, which is the constraint most likely to improve a piece: unlimited colour is what makes amateur work look muddy.
What you'll get
This generator draws from a hand-checked list of 8 entries. Here is a spread of 6 of them, so you can see the style before you generate:
- Use only two colours plus white for your next piece.
- Use only colours that exist in nature at midnight.
- Limit yourself to a single colour family, varying only tone and shade.
- Work entirely in greyscale, then add exactly one accent colour.
- Use only colours you can mix from three tubes of paint (or three swatches).
- Restrict yourself to colours found in a single photograph you choose.
A fixed sample of the list, not a live draw — your own results are picked at random from all 8, without repeating until the list runs out. Original authoring for Generate Random — general colour-constraint art challenges.. Last reviewed 2026-07-18.
How to use this tool
- Press generate for a constraint.
- Apply it to your next piece.
Common use cases
- Colour-theory practice
- Overcoming a palette-indecision block
- Art-class assignments
Practical tips
- Stick to the limit even when a fourth colour would solve a problem; solving it within the limit is the exercise.
- Pair it with the colour palette generator to pick the actual colours rather than choosing them one at a time.
Entries are chosen with your browser's cryptographic random number generator, so every entry on the list is equally likely. How Generate Random works.