Waterfall Chart

Shows how a run of gains and losses builds a start total into an end total, step by step. Positive and negative steps carry their own glyph and position so the direction reads without relying on colour, with a plain-text breakdown underneath for screen readers.

Stats & Numbers · Astro · Subscription · commercial licence · v1.0.1 · updated 2026-10-15 · Live demo

Install

velocityx add waterfall-chart

Subscription component. Run velocityx login with your key first — get one.

---
import WaterfallChart from '../components/velocity/waterfall-chart/WaterfallChart.astro';
---
<WaterfallChart />

Props

Prop	Type	Default	Description
start	number	required	—
steps	WaterfallStep[]	required	—
startLabel	string	'Start'	—
endLabel	string	'End'	—
unit	string	''	—
decimals	number	0	Decimal places for the value formatter.
height	number	220	—
className	string	''	—

Files written

velocityx drops these into your project:

• components/velocity/waterfall-chart/WaterfallChart.astro

Peer dependencies

None.

Theming

Colours come from the primary-* / accent-* Tailwind scales, so this drops into a project that is not Velocity without dragging our brand in. Install the contract once:

velocityx theme

Then set your whole brand in one place — raw RGB channels, not hex (a hex here silently breaks every opacity variant):

:root {
  --vx-brand: custom;
  --vx-primary-600: 220 38 38;
}

There is no component-level font-family anywhere in the library — your font cascade wins.

Licence

Commercial, for the duration of an active Velocity X subscription. The source is served by the licence-gated endpoint, never by the public CDN.