contrastRegionPath

function contrastRegionPath(
  reference: Color,
  hue: number,
  options?: ContrastRegionPathOptions,
  trace?: InternalPlaneTraceContext | null,
): ContrastRegionPoint[];

Takes the same arguments and throws under the same conditions as contrastRegionPaths.

Parameters

referenceColor

Color the samples are measured against.

huenumber

OKLCH hue in degrees (wrapped).

options?ContrastRegionPathOptionsdefault {}

Gamut, metric, threshold and sampling options.

trace?InternalPlaneTraceContext | null

Internal tracing context used by the plane query layer; omit it.

Returns

ContrastRegionPoint[]One contour path of { l, c } points.

Example

import { contrastRegionPath, parse } from '@pbroom/color-kit';

const path = contrastRegionPath(parse('#fff'), 250); // AA (4.5:1) vs white
path.length; // → 57
path[0]; // → { l: ≈ 0.5681, c: 0 }