import type { ChartColor } from '../types';
export declare const CHART_PALETTE_FILL: Record<ChartColor, string>;
/**
 * Resolve a chart colour to a CSS color string. A `ChartColor` palette key is
 * looked up in `CHART_PALETTE_FILL`; any other string is returned verbatim so
 * callers can pass `var(--color-violet-500)`, `#8b5cf6`, `oklch(…)`, etc.
 * Returns `undefined` only when `color` is undefined — the caller decides the
 * fallback (line/slice fall back to slate; popover dots stay transparent).
 */
export declare const resolveChartColor: (color: ChartColor | string | undefined) => string | undefined;