This visualization maps racial demographics across New York census tracts, blending white, Black, and Asian population counts into a single composite color per tract. Each race’s count is encoded using a square-root scale, with three HCL colors of equal saturation and luminance, then multiplicatively blended to produce the final fill. The map renders as SVG using `d3.geoPath` and TopoJSON, with a shoreline clip-path, hover highlighting, and zoom via `d3.zoom`. Data comes from the American Community Survey API, with a color legend generated by the custom `colorLegend` function.