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Spectrum Bench
ChartsScientific plots that need maximum separation across a wide set.
Click a swatch to copy its hex.
Do not use this for
Anything subtle — this is a test pattern, not a mood.
What was measured
- Closest neighbours
- ΔE00 31.6
- how alike two adjacent swatches look
- Darkest to lightest
- 7.52:1
- WCAG contrast across the set
- Lightness covered
- 48 pts
- of OKLCH lightness, 0–100
- Under colour blindness
- ΔE00 24.8
- worst under deuteranopia
Every pair here survives protanopia, deuteranopia and tritanopia, so these five can stand for five different things.
A suggested mapping · derived, then measured
Five colours are not an interface, so this is an offer rather than a token set. It does not clear WCAG AA on secondary text and the accent — stated here rather than left for you to discover.
/* Spectrum Bench — Scientific plots that need maximum separation across a wide set. */
:root {
--palette-1: #1b10a1;Tailwind
// tailwind.config — Spectrum Bench
export default {
theme: {For your coding agent · printed from the colours
Use the Spectrum Bench palette: #1B10A1, #6F0100, #047974, #0ADCF6, #CCCD0D. It is for this: Scientific plots that need maximum separation across a wide set.
How this palette was built · no hex was chosen by hand
The catalog states a recipe — series from hue 190 — and the five colours are derived from it in OKLCH, where a step of lightness is a step your eye agrees with rather than one the hex numbers agree with. That is why the numbers above are properties of this palette rather than claims about it.