Accessibility
Audit the whole palette.
Check contrast across every pair and find colors that may become difficult to distinguish.
Palette colors
Use three to six colors. Every unique pair is checked.
Color 1
Color 2
Color 3
Color 4
Color 5
Contrast matrix
AA text requires 4.5:1. Large text and interface graphics require 3:1.
| Pair | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| 1 | — | 16.98AA | 3.43Large | 5.57AA | 5.38AA |
| 2 | 16.98AA | — | 4.95AA | 3.05Large | 3.15Large |
| 3 | 3.43Large | 4.95AA | — | 1.62Fail | 1.57Fail |
| 4 | 5.57AA | 3.05Large | 1.62Fail | — | 1.03Fail |
| 5 | 5.38AA | 3.15Large | 1.57Fail | 1.03Fail | — |
Color-vision conflicts
Pairs that may become difficult to distinguish under common simulated color-vision differences.
Simulation is a practical warning system, not a replacement for testing meaning, labels, shapes, and interaction states with people.