Accessible Color Palette
Quick answer
Pick a base palette—the tool suggests text/on-color pairings that target contrast thresholds.
For a related estimate, see Favicon Generator.
Explore further: Favicon Checker · Image Color Palette Extractor
Not only contrast
Accessibility also needs focus states, motion settings, and semantics—palette work is necessary but not sufficient.
Explore further: Color Name Identifier · Color Blindness Simulator
Accessible palettes pre-check readable pairs so teams don’t ship beautiful but illegible themes. Use it when you are defining product colors or dashboard themes.
How to use this calculator
- Open the tool: Enter brand primaries.
- Tune inputs: Review suggested neutrals and on-color text.
- Read the output: Export tokens to your design system.
Real-world examples
- Blue on white: Often needs a darker blue for body text than for large headings.
- Dark mode: Re-tune pairs—pure white on pure black can be harsh; still check ratios.
Explore further: Ai Api Cost Calculator
Tips & gotchas
Document focus ring colors alongside text pairs—keyboard users need visible outlines.
FAQ
Dark mode automatically accessible?
No—recompute ratios; some light-mode passes fail when inverted.
Does this tool send my text to a server?
Calciverse runs in your browser; we do not store your inputs on our servers for these utilities. Anything that uses network APIs (for example DNS lookup) only sends what you explicitly request.
Why do results differ from another site?
Rounding, defaults, and implementation details (color spaces, tokenizers, DNS resolvers) can differ. Compare definitions, not just the headline number.