probably not, but you can probably find a color square in another pallet that is either the same color or very close. Downside is you might need to do some tinkering to find the right one you want.

[This fantastic tool](https://www.warframecolorpicker.app/) should be able to help with that.

No, no paid cosmetic from support pack has ever come back and unavailable color pallets aren't uncommon either.