By their name, we can get a clue as to what colors we will see next. The bright shades of winter are characterized by being luminous and are sometimes associated with a mix of winter and spring. So you can even opt to add some light colors but not too bright, but rather opaque or a bit muted.
Colors that are an absolute yes for this palette: acid yellow, azure, Chinese blue, cobalt blue, emerald, hot pink, iced aqua, icy grays, light gray marl, lobelia, pink ice, royal blue, sapphire, shocking pink, silver, true red, violet, and white.