This dependency as found in package.json of plotly.js 2.27.0 causes a deprecation warning:

"color-rgba": "2.1.1"

The deprecation warning:

npm WARN deprecated mumath@3.3.4: Redundant dependency in your project.

color-rgba@2.1.1 depends on color-space@^1.14.6 which can resolve to color-space 1.16.0 at its latest. This was published 6 years ago and depends on mumath@^3.3.4