Datum Line
ChartsSparklines and inline data that must read at very small sizes.
Click a swatch to copy its hex.
Do not use this for
Large fills — at scale the set looks like a beach ball.
What was measured
- Closest neighbours
- ΔE00 40
- how alike two adjacent swatches look
- Darkest to lightest
- 7.48:1
- WCAG contrast across the set
- Lightness covered
- 48 pts
- of OKLCH lightness, 0–100
- Under colour blindness
- ΔE00 22.1
- worst under tritanopia
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.
/* Datum Line — Sparklines and inline data that must read at very small sizes. */
:root {
--palette-1: #631d00;
--palette-2:Tailwind
// tailwind.config — Datum Line
export default {
theme: {For your coding agent · printed from the colours
Use the Datum Line palette: #631D00, #087687, #BB6E61, #DEC509, #07E1D8. It is for this: Sparklines and inline data that must read at very small sizes.
How this palette was built · no hex was chosen by hand
The catalog states a recipe — series from hue 212 — 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.