node-d3-color 1.2.8-3 (amd64 binary) in ubuntu lunar

 Even though your browser understands a lot about colors, it doesn’t offer much
 help in manipulating colors through JavaScript. The d3-color module therefore
 provides representations for various color spaces, allowing specification,
 conversion and manipulation. Also see d3-interpolate for color interpolation.
 .
 Node.js is an event-based server-side JavaScript engine.