Color calculations very different from the official tools

[TonyDowney]

The Material design Color documentation has a tool to generate new swatches:
https://material.io/design/color/the-color-system.html#tools-for-picking-colors
The colors generated using the example of 0xFFFFD700 turn out very differently than the current ms_material_color library:

Any chance at an alternate method for calculating swatches of colors based on the logic behind the official tools?