Code PR

• I have read through the contributing notes and understand the structure of the package. In particular, if my PR modifies code of plotly.graph_objects, my modifications concern the codegen files and not generated files.
• I have added tests (if submitting a new feature or correcting a bug) or
  modified existing tests.
• I have added a CHANGELOG entry if fixing/changing/adding anything substantial.
• For a new feature or a change in behaviour, I have updated the relevant docstrings in the code to describe the feature or behaviour (please see the doc checklist as well).

This is the first PR of 3 PRs that address the problems mentioned in #4957 :

• HSL support Fix: Added HSL support to validate_colors and hsl_to_rgb #4962
• Named Colors support Fix named colors support #4963
• Bug with invalid colors in a list <--

The changelog update and plotlyjs update are in this PR