Adobe also has a very interesting color picker: https://color.adobe.com/ https://color.adobe.com/ But, unfortunately, it too only serves as a partial solution

Adobe also has a very interesting color picker: https://color.adobe.com/ https://color.adobe.com/ But, unfortunately, it too only serves as a partial solution (since, as far as I know—someone please correct me if I got that wrong—it doesn't address any of the matters discussed above), PLUS it seems highly likely that Adobe has software patents on it.