Derived in OKLCH and verified against colour-vision deficiency and non-text contrast. Every chart below uses the sequence exactly as it would ship.
One series carries the claim
Argument mode — the rest go neutral
4 peers, none of them the point
Categorical mode — hover a line or its legend
Composition over time
Stacked to 100% — only the bottom band shares a baseline
Shares of a named whole
Four slices, no natural order
The same 4 on a dark surface
Dark tier — a light-tier palette would fail here
Composition, dark tier
Same data, tier switched by surface
| Tier | Normal | Protan | Deutan | Tritan | Worst ΔE | Min contrast |
|---|---|---|---|---|---|---|
| Light | 28.32 | 18.25 | 6.45 | 7.16 | 6.45 | 3.34 |
| Dark | 40.58 | 20.81 | 17.1 | 9.31 | 9.31 | 3.01 |